Does ice melt faster in cold water or hot water?

Ice melts faster in hot water than in cold water.

Melting 0 degrees Celsius ice into 0 degrees Celsius water requires a lot of heat of melting, which can cause the water temperature to drop. If 0 degrees Celsius ice is placed in 0 degrees Celsius water, the ice will not melt without other heat exchange.

According to the general belief, it seems that hot water provides more heat and that ice cubes should melt faster than in cold water. But I don't know if you know that Northeast people have such a habit, that is, to eat frozen pears in winter, they all use cold water to soak frozen pears, saying that they will be thawed soon. I don't know what kind of truth there is in this.

If you use hot water, the fibers on the surface of the meat will shrink rapidly, the external water is not easy to penetrate, the internal and external temperature is not easy to transfer, and the cold water can replace the liquid water in the ice.

No matter how low the temperature is, there is always liquid water in the ice. I just know that the theory of liquid water in the ice is a great discovery by Chinese scientists at the end of the last century, which shocked the world. ”

Think about it, if the meat is frozen together, the ice water melts, the meat is still cold, each piece has its own ice, but it still melts, and the hot water heats suddenly, it is equivalent to forming a protective layer, although it melts quickly in a short time, but it has to completely melt from a whole piece to the inside, and when it is finished, each piece of meat has almost no ice, and the time to completely melt is longer, so ah, if you want to see the speed or slow, you must consider the degree of freezing and the gaps, there are seams that are frozen lightly with hot water, and those that are seriously frozen are hard with cold water that melts quickly,, Hope you help!

You draw fast in hot water, just thaw it in hot water is to let him talk and give birth to chicks with the mother chicken, if there is no body temperature, it is impossible to hatch the eggs, he has the body temperature to hatch the eggs.

Ice cubes melt quickly in hot water.

1. There is a temperature difference between ice cubes and cold water, and there is also a temperature difference between ice cubes and hot water. And the temperature difference between ice cubes and hot water is larger than that between ice cubes and cold water.

2. Heat can only be transferred from a high-temperature object to a low-temperature object. When objects with different degrees of cold and heat are in contact with each other, the heat transfer will stop until their temperature is the same, that is, the thermal equilibrium is reached.

3. From the relationship between the speed of heat transfer and the temperature difference, ice melts faster in hot water than in cold water.

Melts quickly in hot water.

Ice melts to absorb heat, and endothermia requires temperature differences. The temperature difference between hot water and ice is large, so it absorbs heat quickly and melts quickly.

Ice is crystal, and there are two conditions for crystals to melt:

1. The temperature reaches its melting point (the melting point of ice is 0 degrees Celsius); Second, he was frank and continued to absorb heat. As long as the ice continues to absorb heat, the temperature will gradually rise to the melting point, and then continue to absorb heat, and it will melt. There are two ways to absorb heat (i.e., the increase in the internal energy of an object).

Work done and heat transfer, these two methods are equivalent.

The external object does work on the ice, and the internal energy of the ice increases; On the contrary, ice does work on external objects, and the internal energy of ice decreases. One situation is that if an object from the outside world does work on the ice, the ice will melt (that is, the principle of frictional heat generation).

If there is a temperature difference between two objects, heat transfer occurs, and the internal energy is transferred from the hot object to the low temperature object, until the temperature of the two objects is the same. Therefore, there is also a possibility that there is heat transfer between an object with a temperature higher than ice and the ice (in the form of conduction, radiation, and convection), so that the ice will continue to absorb heat and melt after reaching the melting point.

In our daily life, there are actually a lot of common sense in life, and sometimes we can use these common sense appropriately, which can bring a lot of convenience to our lives. We all know that ice freezes when the temperature is below zero degrees Celsius, but when we put ice cubes in cold water, we find that they melt faster than when we put them in boiling water, why is that? In fact, this has a lot to do with heat transfer and the temperature difference of water, so let's explain it in detail.

We all know that ice, cold closed water and boiling water belong to three different forms of temperature, among which the temperature of ice reaches 0 degrees Celsius, cold water is the normal temperature water that we usually use, and the temperature of boiling water has reached 100 degrees Celsius, so among the three, there is a temperature difference between the three. In real life, we put ice cubes in cold water to melt faster than in boiling water, and there are many reasons for this.

First of all, we all know that there is a heat transfer effect in water, and heat transfer is transmitted through different degrees of temperature of objects, such as from high-temperature objects to low-temperature objects, but there is a large temperature difference between the temperature of boiling water and the temperature of ice, which will directly affect the speed of cooling of objects, so the above situation will occur. The second is that there is also a temperature difference between the ice cubes and the cold water, but the temperature difference between the two is much smaller than in boiling water, so the ice cubes can be cooled in this way.

Finally, a large amount of water vapor will be produced in boiling water, when the ice cubes are put into the boiling water, a layer of water vapor will appear on the outside of the ice cubes, in fact, there is a certain cooling effect between this layer of steam, but this layer of water vapor will hinder the heat transfer between the ice cubes and the boiling water, so this greatly reduces the cooling rate of the ice cubes in the boiling water. Through the above analysis, I believe you have a further understanding of this problem, if you want to know more, you can find some books to solve it.

The rate at which cold and hot water melt ice is different. Cold hydration of ice is comparatively slow, whereas hot water is comparatively faster to ice transformation. This is due to the fact that the higher the temperature of the object, the faster the internal molecules will move and more easily interact with their surroundings.

From this, we can conclude that hot water melts ice faster than cold hydration.

From a physicochemical perspective, we can gain insight into the causes of cold and hot water ice. Water molecules move slower at low temperatures and move faster at high temperatures. When we pour warm water into a container filled with ice, the hot water can quickly increase the temperature on the surface of the ice cube, and make the water molecules inside the ice cube start to become more active, so that more ice molecules will be affected by the temperature.

Conversely, when we use cold water, it is not hot enough to raise the temperature of the ice cube surface quickly, and it takes longer for some water molecules to become more active.

In addition, we can also explain this physical phenomenon through other aspects. The basic principle of hot water ice is also based on thermal expansion and cold contraction. Since thermal expansion leads to the expansion of the volume of the object, when hot water is poured on the ice, the localized area humidity increases and it is easy to rupture, which forms more cracks and accelerates the inflow of heat, thus melting the ice faster.

Finally, we can conclude that hot water melts ice faster. However, it should be noted that the use of hot water to melt ice is risky, and if the temperature is too high, it will cause thermal shock due to the temperature difference, which can easily lead to the rupture of the container. Therefore, it is important to clarify the temperature when using hot water to melt ice, and to use it with caution.