Excuse me, why does ice water melt when it gets into the water?

The melting point of ice is 0 degrees Celsius.

When the water temperature drops to 0 degrees Celsius, it freezes.

At 0 degrees Celsius, ice becomes water.

Ice is put into the water, and heat transfer takes place, and water conducts heat transfer to ice.

The temperature of the ice rises, and when it is greater than 0 degrees, it turns into water.

The water temperature is high, and the temperature of the ice is 0 or below, of course, it will melt.

The temperature of the two is not the same, and in order to achieve the same, the ice absorbs the heat and melts.

Can a 0 degree ice water mixture not melt when it hits water at room temperature?

Ice water? The temperature of the ice and water together must be zero degrees (but the melting point and freezing point seem to change due to some physical factors - I forgot what the factors were, and they were all returned to my physics teacher).And the temperature of the water is higher than 0 degrees, and when it mixes together, without taking into account heat loss, heat transfer also occurs, and the temperature of the ice-water mixture increases, and it eventually melts.

When the ice is at 0, the heat absorbs and turns into water.

When the water is at 0, the heat will turn into ice.

It's the physical nature of water!

The temperature of ice is 0 degrees Celsius and water is at room temperature. It is usually ten or twenty degrees, and of course the ice has to melt when you put it in.

In general, the temperature of water can be regarded as room temperature, water freezes at 0 degrees Celsius, and ice melts when the temperature is above 0 degrees Celsius.

Isn't ice water already liquid, how can it still melt?

The specific heat capacity of water is large, the specific heat capacity of air is small, the air around the ice will quickly decrease in temperature, so that the heat conduction slows down, and the specific heat capacity of water is large, the temperature will not decrease quickly, so that the heat conduction continues to proceed rapidly, so the ice will melt faster when placed in water.

Because the specific heat capacity of water is higher than that of air. In fact, the process of melting the ice cube is a process of energy transfer. Heat energy is spontaneously transferred from low to high (from a hot object to a cold object).

When you put ice cubes in water at room temperature, the heat in the water is transferred to the cooler ice, and the more heat transferred per unit of time, the faster the ice melts. The specific heat capacity of water is j (kg), i.e. one kilogram of water needs energy of j to rise one degree, and similarly, one kilogram of water falling one degree can release the energy of j. The specific heat capacity of the air is about 1 10 j (kg) (the humidity of the air will have an impact on its specific heat capacity), and the energy released by the drop is less than that of water, so it naturally melts quickly when placed in water.

The water surface remains the same. The analysis is as follows:

1. The mass of the water formed by the melting of the ice cube is the same as that of the burning beam of the ice, but the volume will be smaller.

2. According to Archimedes' principle, there are: F float g row.

3. The ice floats on the surface of the water, the ice is in equilibrium, and the buoyancy of the ice is equal to the gravitational transport of the ice: f float = g ice.

4. To sum up the above two points: G row = G ice, M row = M ice.

5. The quality of the ice is the same as the quality of the ice, and the quality of the ice is equal to the quality of the water, so the quality of the water formed after the ice is melted is equal to the quality of the water, that is, the water that the ice becomes can just fill the space occupied by the ice, so the water surface remains unchanged.

Buoyancy and Archimedes' Principle:

1) Definition: The upward force exerted by an object immersed in a liquid is called buoyancy.

2) The force object and the force object: the buoyant force object is a liquid (or gas), and the force object is an object immersed in a liquid (or gas).

3) Direction: The direction of buoyancy is always vertically upward. <>

1. If it's a brain teaser:

The answer is as the prompt says, remove the two points of water from the word "ice";

2. If it is a physical problem, the larger the temperature difference, the faster the heat conduction velocity, so if the ice is placed in a high-temperature environment, the higher the temperature, the faster the ice will turn into water.

Explanation: Water (chemical formula: HO) is an inorganic substance composed of two elements, hydrogen and oxygen, and is non-toxic.

It is a colorless and odorless transparent liquid at room temperature and pressure, and is known as the source of human life. Water, including natural water (rivers, lakes, atmospheric water, seawater, groundwater, etc.), distilled water is pure water, artificial water (water obtained by combining hydrogen and oxygen atoms through chemical reactions). Water is one of the most common substances on the earth, an important resource for the survival of all life, including inorganic chemistry, and the most important component of living organisms.

Water has played an important role in the evolution of life. It is a narrowly non-renewable, broadly defined renewable resource.

The 3 states of an object, i.e., solid, too, and gaseous. Ice is the solid form of water, water stone is in liquid form, and water vapor is gaseous. All objects have their 3 states, except that the melting and boiling points are different.

The melting point refers to the critical temperature at which a solid state becomes a liquid state, and the boiling point refers to the critical temperature at which a liquid state becomes a gaseous state. Moreover, these critical temperatures are also related to the air pressure on the surface of the object.

The melting point of water at standard atmospheric pressure is 0 degrees, and the boiling point is 100 degrees. When the ears are high at zero, the ice will turn into water, and below zero, the water will freeze. 3. Water and ice are two different states of the same substance, just like people have times when they are angry and calm, but people are still the same person, as for why they become angry and calm, or calm and angry, it is like ice can turn into water, and water can turn into ice, this is a great masterpiece of God.

From a physical point of view, when the temperature of water drops below 0 degrees Celsius at standard atmospheric pressure, the structure of its branches and hands changes and it emits heat and becomes ice, and when it is above zero, the ice becomes water because of the change in its molecular structure due to the absorption of heat1, water can be put in the refrigerator can be ice, 0,

The experimental procedure for turning water into ice is as follows:

Prepare the materials for the experiment: a bottle of mineral water, some ice cubes, a glass of water.

Experimental steps: 1. The first step is to put a bottle of mineral water in the freezer layer of the refrigerator, let it go for two hours, take it out, and the water is still liquid.

2. Then take the bottle and knock it the table, and the whole bottle of water will change from transparent to translucent.

3. Then pour ice cubes into the prepared glass of water.

4. Finally, open the mineral water bottle just now, slowly pour the water onto the ice, and the moment the water flows out, it freezes.

Experimental principle: A bottle of mineral water is placed in the freezer layer of the refrigerator for two hours, when the temperature of the water is already below 0 (as low as below freezing), but because of the lack of condensation nuclei in the water, the water is still in a liquid state, such water is called supercooled water. Slowly pour supercooled water into a glass glass with ice cubes, at this time the ice cubes in the glass are condensation nuclei, and the supercooled water will slowly freeze.

Water freezing is a physical change in solidification, and microscopically speaking, it is just that the water molecules change from a relatively scattered arrangement to a compact one. When the temperature of water decreases, the process of changing the substance from a liquid state to a solid state, and the temperature at which the substance solidifies is called the freezing point. Almost all known liquids can solidify into solids at low temperatures.

The melting point of water at one atmosphere is very close to 0, and if there is a nucleating agent, its freezing point will be very close to the melting point, but if there is no nucleating agent, the water will be supercooled below 0, and it will not form ice until 40. At a high pressure of 2,000 atmospheres, the water is in a supercooled state until 70.

1. Take the melting ice to a room with a temperature of 0 degrees Celsius, and the ice will not continue to melt

2. At standard atmospheric pressure, the melting point of ice is 0, and the freezing point of water is also 0, so if you take the melting ice to a room with a temperature of 0 degrees Celsius, the ice cannot continue to melt

3. Ice is a crystallization formed by the orderly arrangement of water molecules, and the water molecules are connected together by hydrogen bonds to form a very "loose" (low-density) rigid structure.

Ice turns into water because it absorbs enough heat to cause the thermal motion of the molecules to increase, which eventually causes the solid ice to turn into liquid water. When ice absorbs enough heat, its molecules begin to vibrate until the force of attraction between the molecules weakens, allowing them to flow freely and form liquids. This grinding process is called melting.

In this process, the heat is absorbed by the blind oak because the molecules need energy to overcome the attraction between them. That's why we need to add heat to the ice to make it melt.

Water in nature has three states: gaseous, solid and liquid. We call it water in its liquid state, water in its gaseous form is called water vapor, and water in its solid state is called ice. The heat of melting of ice is that water is a special liquid.

It is at its highest density at 4. The temperature is above 4, and the liquid water obeys the general law of thermal expansion and contraction. 4 Below, among the condensation molecules that were originally distributed in a linear pattern in water, there is an ice-like association molecule like an ice crystal structure, which is called"Fake ice crystals".

Because the density of ice is smaller than that of water, the existence of "false ice crystals" reduces the density of water, which is why water is at its highest density at 4, and the density below 4 is the secret. The association of water molecules in natural ice is arranged according to the rules of the hexagonal crystal system. The simplest example of a crystalline lattice is a tightly packed set of bricks, and if a hypothetical atom is substituted at the center of these bricks, a crystalline lattice is obtained.

The crystal lattice of ice is a triangular prism with a crust, and the oxygen atoms on the six corners are common to the six adjacent unit cells. The oxygen atoms on the three edges are shared by three adjacent unit cells, and the two axial top oxygen atoms are shared by each of the two unit cells, and only one oxygen atom is unique to the unit cell.

In our daily life, there are actually a lot of common sense, 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.