How does water stay hotter for longer?

water can stay for longer due to its higher heat capacity and water can reduces its temperature.

Water has a relatively high specific heat capacity, which means that it can absorb a large amount of heat energy before its temperature increases. This property of water makes it an efficient heat storage medium, and it helps to explain why water stays hotter for longer than many other liquids. When heat energy is added to water, the water molecules absorb the energy and increase their kinetic energy. The increased kinetic energy causes the water molecules to move faster, which in turn increases the temperature of the water. However, water molecules are also relatively heavy, so they require more energy to be added to them in order to increase their kinetic energy and raise the temperature. The high specific heat capacity of water also makes it an effective heat transfer medium. When water is heated, it can absorb and transfer a large amount of heat energy to its surroundings before its temperature changes significantly. This means that water can act as a buffer, absorbing and releasing heat energy slowly, which helps to maintain a relatively constant temperature in the environment. Additionally, water has a high heat of vaporization, which means that it requires a large amount of heat energy to change from a liquid to a gas. When water evaporates, it cools down the remaining liquid, this is the reason why sweating is an effective way to cool down the body. In summary, water has a relatively high specific heat capacity and heat of vaporization, which means that it can absorb a large amount of heat energy before its temperature increases and requires a large amount of heat energy to change from a liquid to a gas. These properties of water makes it an efficient heat storage medium and effective heat transfer medium. As a result, water stays hotter for longer than many other liquids.

Water can stay hotter for longer due to its high specific heat capacity, which means that it can absorb and retain a large amount of heat energy without a significant increase in temperature. This property allows water to take longer to heat up and cool down compared to other substances.

Water's high specific heat capacity and heat of vaporization make it an excellent thermal insulator, allowing it to retain heat for longer periods of time than other substances.

Hai Laia, It would be good, if you wait for an hour. Because, when you keep the water in a container the temperature exchange will take place between the water and the container, hot water takes more time to reduce its temperature which means the water remains hot for more time when compared to the water mixed with cold water. When you mix the water with the cold water the temperature of the water would be already reduced, hence the water will not be hot for much time. And it also depends on the type of the container, if you use a isothermal container, water will be hot for long time. Hope it would be helpful. Thank you .

It all depends on the temperature of the water. It also depends on where you are, if the temperature of the place is cold and the water is very hot, it will get cold faster . so if you are in a warm place it doesn’t really matter but it depends on the amount of cold water you’re adding and the amount of hot water is in

Water stays hotter and longer because it has a high specific heat capacity (the heat required to raise the temperature of unit mass (1kg) of a substance by one kelvin) and has such has the ability to retain the heat gained for longer periods

The rate of heat loss from a container of hot water depends on several factors, including the temperature difference between the water and its surroundings, the surface area of the container, and the insulating properties of the container. In the scenario you described, mixing cold water with hot water will reduce the temperature difference between the water and its surroundings, which will slow down the rate of heat loss. Therefore, adding cold water to the container from the start will help the water stay hotter longer than waiting an hour before adding the cold water. However, keep in mind that the temperature of the cold water you add will also affect the final temperature of the mixed water. If you add very cold water, it may reduce the overall temperature of the mixed water more than if you add water that is only slightly cooler. Additionally, the size and insulation properties of the container can also affect how long the water stays hot.

When mixing hot and cold water to obtain the desired temperature, the rate of heat loss from the mixed water depends on the initial temperature difference between the hot and cold water. If the hot and cold water are mixed from the start, the initial temperature difference will be larger, resulting in a faster rate of heat transfer and a quicker cooling of the mixed water. Waiting before mixing the cold water will result in a smaller initial temperature difference, slower heat transfer, and a longer duration of the mixed water staying hot. The actual time needed to wait depends on various factors.

Heat exchange(lost) is directly proportional to temperature of water( Newton law of cooling). Higher the temperature more heat will be lost. So mix water at start.

When you heat up water, it takes a longer time for the temperature to rise compared to other substances with lower specific heat capacities. But once it reaches a certain temperature, it will retain that heat for a longer period of time due to its high specific heat capacity. Furthermore, when you keep a container of hot water covered, it helps to retain the heat and prevent it from escaping into the surrounding environment. This is because the cover reduces the amount of heat lost to the surroundings through convection, which is the transfer of heat energy through the movement of fluids, like air. So, the combination of water's high specific heat capacity and its ability to retain heat, as well as the use of a cover to reduce heat loss to the surroundings, can help keep water hotter for a longer period of time.

Mixing cold water with hot water from the start will keep it warmer because of drop in temperature takes longer time.

It can stay hotter due its specific heat capacity

Hie there. Leaving hot 🔥 water for an hour and then cooling it compared to cooling the water now and using it after an hour. Basically the later is the better option. It is better to cool the water now than wait for an hour to do so because more heat is lost to the surroundings by a hotter object being guided by the first law of thermodynamics. If bodies of unequal temperatures are in contact the kinetic energy possessed by the hotter body (hot water in a bucket) is more than the cooler body (surrounding air). Heat energy is lost through conduction and radiation to the surrounding air much quicker to achieve thermal equilibrium (same temperature). From a specific heat capacity point of view Q = mc(temp change) Where Q is heat supplied to the hot water, m is the mass of the hot water and temp change is the increase in temperature of the water to it's hot value. The energy in the hot water is mc(temp change). If you cool the water initially most of the heat is transferred to the colder water mass M to make it warm that is mc(temp change) = Mc(temp change) assuming there are no losses of heat to the surroundings. How ever over an hour the hot water tends to loose more heat to the surroundings since it's molecules have more energy and the increased evaporation causes further increase cooling than if the water where warm initially. Warm water will stay warm over a longer period than hotter water which tends to cool faster since molecules have very high energy compared to the surroundings. By keeping the temperature of two bodies closer in value ensures drift in temperature to thermal equilibrium is slow than if the temperature difference were higher.

The Newton's law of cooling applies here.Mixing of cold water in the start will keep the water to be warmer for a longer time compared to if you mix cold water at a later stage. This is because rate of cooling of water will be higher at a higher temperature (by Newton's law of cooling the rate of cooling of body is directly proportional to the temperature difference between body and it'surroundings)

Water stay hotter for longer because it has high specific heat capacity as seen in formula delta q=m*s*delta t.Hence it requires more heat to loose to cool don and so more times required.

Water has the ability to stay for a longer period of time warm because of its high specific capacity Alternative use a vacuum flask to maintain that temperature for a period of time

Because its specific heat is one of the highest. The greater the specific heat, the greater the amount of heat to be lost or gained by 1 gram of the substance when the temperature increases or decreases 1 degree, respectively.

The rate of cooling will be faster for hotter water. So in terms of losing energy to the outside world, you will retain more energy in the system if you add the cold water initially.

You had better wait before pouring in the cold water. The rate of heat transfer is directly proportional to the area of the outer surface of water, so you had better put the hot water in a vessel of small opening area. Also to keep the water warm for long time, the vessel must be made of insulating material of very low thermal conductivity

You had better wait before pouring in the cold water. The rate of heat transfer is directly proportional to the area of the outer surface of water, so you had better put the hot water in a vessel of small opening area. Also to keep the water warm for long time, the vessel must be made of insulating material of very low thermal conductivity coefficient.

When the temperature of the system is high, the rate of heat loss will be higher, therefore, mixing with cold water from the start would be the best option to have hot water with a comparatively higher temperature after 1 hr

Your question is not clear. It depends on the thermal conductivity coefficient of the containers, the environment (if you change the room temperature within your time-interval), etc.

This question is related to heat capacity of water and water has large heat capacity due its structure of molecular binding .a system gain or absorb the quantity of heat according to it internal particle motion .the greater the particle vibrate or rotate or even translate the greater the amount of heat it will absorb.And water molecules have potential of space to vibrate and rotate so that why it is having large heat capacity

Newton's cooling law says the hotter something is, the faster it will cool down. So best to add the cold water first.

Due to its higher heat of capacity...

If the transfer of temperature is more the lesser the time it will stay at its original temperature. As the temperature change is due to heat transfer from higher temperature to colder, the temperature drops.

Besides the Specific heat of the water being high, the time taken for the water to absorb heat is the same as the time required to dissipate the heat. So, cold water must be added at the end.

If you mix the hot water with cold water from the start, the resulting mixture will have a lower overall temperature than the hot water alone. This means that the mixture will cool down more slowly than the hot water on its own, but it will also take longer to heat up in the first place. On the other hand, if you wait an hour before pouring in the cold water, the hot water will have had a chance to cool down somewhat on its own. When you mix in the cold water, the resulting mixture will have a lower overall temperature than the hot water alone, but it will also take less time to cool down than the mixture you created by mixing the hot and cold water from the start. In general, the rate at which the water cools down will depend on a number of factors, including the initial temperature of the water, the temperature of the surrounding environment, and the insulation properties of the container. However, in most cases, it is likely that the water will stay hotter longer if you mix it with cold water from the start, rather than waiting an hour before pouring in the cold water

Water can stay hot longer because of its specific heat and also because of its entropy.

water is a slow conductor so it keeps the heat for longer time

Water has high heat capacity which is the amount of heat required to raise the temperature of a substance upto a degree Celsius.

Specific heat is the major component that retains heat for a long time. For example, we use water as a coolant in the motor engine.

losing temperature to the surrounding environment will be decrease the temperature of the hot water, therefore its better to mix hot water with cold water to keep the latent heat

Water has a relatively high specific heat capacity, which means that it can absorb a large amount of heat energy before its temperature increases. This property of water makes it an efficient heat storage medium, and it helps to explain why water stays hotter for longer than many other liquids......

Water can absorb a lot of heat energy thanks to its relatively high specific heat capacity, which means it can do so before its temperature starts to rise noticeably. Water has a quality that allows it to retain heat longer. Water's temperature rises when heat is supplied because the heat accelerates the vibration of the water molecules. Water takes longer to heat up than other substances, though, due to its high specific heat capacity. Due to its high specific heat capacity, water cools down more slowly than other substances when heat is removed from it. Water also has a high thermal conductivity, which allows heat to move through it rapidly and effectively. The water can keep its temperature for a longer amount of time because the heat energy is dispersed evenly throughout it. In conclusion, because of its high specific heat capacity and thermal conductivity, which enable it to effectively absorb and distribute heat energy, water maintains a higher temperature for longer.

Water can stay hotter for longer due to its high specific heat capacity which means that it can absorb and retain a large amount of heat energy without a significant increase in temperature. Water has a high specific heat capacity, which means it can absorb a lot of heat energy before its temperature starts to rise.

The better option is to wait an hour before mixing. The reason is: If you mix hot and cold water from start then it will increase the entropy of the system initially and hence the thermal energy of the system but soon its entropy drops to zero because of pouring them in to a large container. If you wait an hour before this then it lowers the entropy and hence the thermal energy of the system gradually.

Mix with cold water from start

Because it's poor conductor of heat so by convection it loose heat very slow so it will be hot for long time

Water stays hotter for longer because it has a high specific heat capacity. After an hour the temperature of both the mixed water will be same.

Water has high Specific heat capacity(The heat required to raise the temperature of the unit mass of a given substance by a given amount). The value of specific heat for water is 1Kcal. Another factor is high Thermal conductivity (The rate at which heat is transferred by conduction through a unit cross-section area of a material, when a temperature gradient exits perpendicular to the area.)

Mixing cold water with hot water just before using it will keep the hot water hotter for longer because it reduces the temperature difference between the water and the surroundings, which slows down the rate of cooling. Mixing the water in advance will result in a greater temperature difference between the water and its surroundings, causing the rate of cooling to be faster and the hot water to cool down quicker.

Mixing cold water with hot water just before using it will keep the hot water hotter for longer because it reduces the temperature difference between the water and the surroundings, which slows down the rate of cooling. Mixing the water in advance will result in a greater temperature difference between the water and its surroundings, causing the rate of cooling to be faster and the hot water to cool down quicker.

Mixing cold water with hot water just before using it will keep the hot water hotter for longer because it reduces the temperature difference between the water and the surroundings, which slows down the rate of cooling. Mixing the water in advance will result in a greater temperature difference between the water and its surroundings, causing the rate of cooling to be faster and the hot water to cool down quicker.

Mixing cold water with hot water just before using it will keep the hot water hotter for longer because it reduces the temperature difference between the water and the surroundings, which slows down the rate of cooling. Mixing the water in advance will result in a greater temperature difference between the water and its surroundings, causing the rate of cooling to be faster and the hot water to cool down quicker.

Great! I'd be happy to explain how water stays hotter for longer in terms that 10-year-olds can understand. When we heat water, the water molecules start moving around very quickly. This movement causes the temperature of the water to rise. However, as soon as we remove the heat source, the water molecules begin to slow down again, and the temperature of the water starts to drop. So, how can we keep the water hot for longer? One way is to use an insulated container, such as a thermos. An insulated container is designed to keep the heat in, so the water doesn't lose its temperature as quickly. This is because the container has layers of materials that don't allow heat to escape easily. Another way to keep water hot for longer is to cover the container with a lid or a piece of foil. This prevents heat from escaping and helps to keep the water hot. It's important to remember that water will eventually cool down no matter what we do. However, by using an insulated container and covering it, we can keep the water hot for a longer period of time. If you want to learn more about heat transfer and how to keep things hot or cold, there are many resources available online, such as science experiments you can do at home or videos that explain the science behind it all.

Because its specific heat capacity (Cv )is very higher and by the reason it absorb large amount of heat before the temperature increases

Specific heat, Csp, is the amount of heat required to change the heat content of exactly 1 gram of a material by exactly 1°C. Because its specific heat capacity (Csp) is very higher and by the reason it absorb large amount of heat before the temperature increases.

The water cannot stay hotter longer since there is always heat transfer it depended on the material property.

It's worth noting that the actual time it takes for the mixed water to cool down will depend on a variety of factors, such as the volume of water, the temperature of the hot and cold water, and the ambient temperature of the surroundings. However, in general, waiting before mixing the hot and cold water will help to keep the water hotter for longer. When you mix hot and cold water together, the temperature of the mixed water will be somewhere between the temperature of the hot and cold water. Therefore, the initial temperature difference between the mixed water and the surroundings will be greater if you mix the water immediately, leading to a faster rate of heat loss. If you wait for an hour before pouring in the cold water, the hot water will have had more time to cool down to a temperature closer to the final mixed temperature. This means that the temperature difference between the mixed water and its surroundings will be smaller, resulting in a slower rate of heat loss and a longer time before the water cools down.

If you will wait then it will remain hot for longer. It is because when you are mixing the cold water then surface area of the whole water will increase and as we know that energy radiated depends on surface area so it will get colder easily.

Water has high specific heat capacity, meaning it requires more energy to raise its temperature.

The fact that every kilogram of water absorbs 4200 Jouls of heat energy for every degree rise accounts for a very huge amount of energy, and it will take a longer time before losing the energy to become cool.

Water can stay hotter for longer due to its high specific heat capacity which means that it can absorb and retain a large amount of heat energy without a significant increase in temperature. Water has a high specific heat capacity, which means it can absorb a lot of heat energy before its temperature starts to rise.

Water has a very high Specific Heat Capacity, this is the ability ability of water to absorb large amount of heat energy before undergoing temperature change. When Cold water is added the very hot water, the molecules of the cold water absorb heat energy from molecules of the hot water, Thus heat transfer occur within the water bodies in the container. This heat transfer does not result to a very significant decrease in temperature. However, when the same quantity of hot is left standing for an hour, it will get cold because the heat is lost to the surroundings from the surface of the water. When the water on the surface gets colder, a convectional current is created where the colder water body sink to the bottom while the hotter water rises to the top, hence heat is lost faster to the surroundings.

Water can stay hotter for longer due to its high specific heat capacity which means that it can absorb and retain a large amount of heat energy without significant increase in temperature .

This is due to the fact that it can absorb and retain a large amount of heat energy without a significant increase in temperature which is a concept of its high specific heat capacity.

It stays hotter for longer time due to its specific heat capacity. which means that it can absorb and retain a large amount of heat energy without a significant increase in temperature.

Put in High Pressure environment

To keep the hot water hotter for a longer period of time, it is more effective to mix it with cold water from the start rather than waiting for an hour before adding the cold water. When you mix hot water with cold water, the initial temperature of the mixed water will be somewhere between the temperatures of the two original sources. By adding the cold water immediately, you are reducing the overall starting temperature of the mixture. This means that the temperature difference between the mixed water and its surroundings will be smaller, resulting in slower heat loss. If you wait for an hour before adding the cold water, the hot water will have already lost some of its heat to the surroundings. When you finally introduce the cold water, it will cool down the mixture rapidly. The larger temperature difference between the mixed water and its surroundings will cause faster heat transfer, resulting in a quicker overall decrease in temperature. Therefore, to keep the water hotter for a longer duration, it is advisable to mix the hot water with cold water from the start. This approach minimizes the temperature difference between the mixture and its surroundings, reducing heat loss and extending the time it stays hot.