What are the special points and connections between ice and water in thermal physics ?

Water is a very strange liquid that has a lot of properties.

Water is hydride, and the boiling point of hydride is very low, such as the boiling point of hydrogen sulfide is, hydrogen selenide is, according to the general law of hydride, the boiling point of water should be lower. However, the boiling point of water is 100°C. So the boiling point of water is abnormal in the hydride group, and this property of water determines that water is liquid at room temperature.

Most substances shrink in volume when they change from liquid to solid, but water expands in volume when it freezes. If the water shrinks in size when it freezes, the ice in the oceans and lakes will sink to the bottom, and the creatures in the water will die in large numbers in winter.

It is generally believed that water is obtained by dissolving ice, and ice is solidified by water, and the transition temperature between them is 0°C, which is actually not so simple, and water is divided into impurity water and pure water. In impurity water such as tap water, the impurities are condensation nuclei, which freeze at less than 0°C. But for pure water, it does not freeze at less than 0°C, and in fact, pure water does not freeze when it is cooled to -70°C when it is still at rest!

The specific heat of water is larger than that of ordinary substances, and the heat of dissolution and vaporization are also very large. Therefore, water regulates the climate and can maintain the body temperature of animals.

In addition, water has a great surface tension. It allows the plant to absorb the water in the soil and also allows the nutrient solution to be transported in the plant body unimpeded.

Water also has a strong ability to dissolve substances, so it is a good solvent and detergent. Water can dissolve limestone and crack rocks when they freeze, accelerating the process of wind erosion and evolution of the earth's crust and rocks.

Water can also form allotrope ice at high pressure. For example, allotrope ice produced by water at a pressure of 100,000 atmospheres has a melting point of up to 360°C. Water can also produce superheated water with a temperature of more than 100 °C under certain conditions, and when the superheated water reaches a certain starvation temperature, it can be turned into water vapor all at once.

Ordinary water turns into magnetic water after a certain strength of magnetic field, which can not only cure diseases, but also water vegetables to increase production. Boiling water and cooling it immediately can obtain deaerated water, which can be used to water crops such as wheat and increase yields. After the water is processed by the crusher, activated water can be obtained, and pigs can be raised with it, which can make the fat layer of pigs thin and the meat delicious.

Water at 0-4 degrees Celsius is shrinking and expanding.

At the same 0 degrees Celsius, the internal energy of water and ice is different.

Ice and water belong to the same substance.

However, the gaps between their molecules are different.

Varies with temperature. The gap will change.

Similarities: Ice and water are both colorless and transparent substances, and both have the chemical formula H2O.

Differences: Ice is solid, water is liquid; The temperature of ice is below 0 degrees and the temperature of water is above 0 degrees. In an atmospheric environment, the melting point of ice is 0. 0 When water freezes into ice, the volume increases by about 1 11 (the minimum volume of water is 4).

Ice is a colorless and transparent solid, a product formed by liquid solidification, condensed by a freezing environment, and liquefied and dissolved at high temperatures, which is a normal natural phenomenon that can be formed naturally or artificially. The molecules are mainly bonded by hydrogen, but there are also van der Waals forces, and the lattice structure is generally hexagonal, which is less dense than water. However, there can also be other lattice structures at different pressures.

Ice is a colorless and transparent solid, a product formed by liquid solidification, condensed by a freezing environment, and liquefied and dissolved at high temperatures, which is a normal natural phenomenon that can be formed naturally or artificially.

The molecules are mainly bonded by hydrogen, but there are also van der Waals forces, and the lattice structure is generally hexagonal, which is less dense than water. However, there can also be other lattice structures at different pressures.

The similarity between ice and water is that its color is the same as its taste, but you can't order it, one is solid, the other is liquid, and the temperature is different.

Ice and water have the same molecular formula, both are H2O, both are colorless and odorless, and both are conductors.

Ice is solid and water is liquid.

The density of ice is less than that of water.

The similarity between them is that they are both made of water, and then the difference is that ice is solid, and water is liquid.

The similarity between ice and water is water, and the difference is that the temperature is not the same.

Ice can be converted into water at a certain temperature, and water can be converted into ice at a certain temperature.

More than 13 words are written correctly, thank you.

Water and ice are the same substance, but the state of existence is different, and the state of its existence determines its density, so the density of water is its characteristic in a certain state.

The ice molecule, like the water molecule, is made up of the elements oxygen and hydrogen. But the morphology is different, ice is solid, and water is liquid. Ice is just another state of water. The molecular composition of both liquid water and solid ice and gaseous water vapor is H2O.

From water to ice, only physical changes occur, no chemical reactions occur, physical changes change from one state to another, and its essence does not change, they are structurally the same, so they are the same substance.

Chemically it is the same substance, and physically it is also a different form of the same substance, and all pure substances have three forms: solid, liquid, and gaseous, but no matter what form it is, as long as the molecule is still the original molecule, it is still the same substance.

Ice is a common phenomenon that can be replicated experimentally to reproduceThe phenomenon of point water ice formation can be realized due to the instability of supersaturated solutions.

1. The principle of point water into iceThe appearance of point water into ice is due to the instability of supersaturated solution. The hot-saturated solution of sodium acetate is cooled undisturbed, and crystallization tends not to occur. This solution is called a supersaturated solution, which is a metastable system, which is an unstable system itself, but can still exist.

When this solution is stirred or the "seed crystals" of solute are added, crystals of excess solute can be precipitated.

2. The experimental procedure of repeated reproduction of the phenomenon of water forming ice first prepares instruments and materials. Then dissolve the sodium acetate crystals, put 60 grams of sodium acetate crystals (Naac·3H2O) in a 250 ml beaker and inject 40 ml of distilled water, then heat through a water bath until the crystals are all dissolved, and after a few minutes, take out the beaker containing the solution, and let it cool to room temperature. Finally, the water appears into ice, and the glass rod is stretched into the solution to gently rub the wall of the cup or stir the solution or put a sodium acetate crystal into the solution as a "seed crystal", and suddenly the needle-like crystals will be precipitated in the solution, and quickly spread to the bottom of the entire beaker, as if forming an "ice cube".

3. Precautions in the experimentDuring the cooling process, remember that the solution should not be shaken or stuck to dust! And sodium acetate should be carried out after use**. The same experiment can be carried out on the materials used in the experiment, such as sodium nitrate and sodium sulfate crystals (NaSO4·10H2O).

If sodium thiosulfate (commonly known as Hypo: Na2S2O3·5H2O) is used for experiments directly, it should be carefully heated and its crystal water dissolved to make a supersaturated solution, and the experimental phenomenon will be more obvious.

In short, the phenomenon of ice formation is repeated due to the discovery of a supersaturated solution due to its instability, when the solution is stirred or the "seed crystals" of solute are added, new crystals can be formed, that is, crystals that can precipitate excess solute.

The principle of turning water into ice is that the supersaturated solution should be unstable. Although the supersaturated solution is an unstable system, it can still exist, and the seed crystals of the excess solute can be sucked out by agitating the solution and adding solute.

Ice formation is a common phenomenon, the principle of which is the dissolution heat effect, the process of dissolving water with ammonium nitrate will absorb heat, so that the temperature of the liquid will be reduced, and the water will form ice.

The occurrence of point water into ice is due to the instability of the supersaturated solution. Although the supersaturated solution is an unstable system, the excess solute crystals can be sucked out by agitating the solution and adding solute to the seed crystals.

The world's most amazing liquid, a little water can turn into ice, what is the principle of this?

The principle of ice formation is through supersaturation of the solution.

Hello dear, the similarity between ice and water found here is that they are both colorless and transparent substances. The differences are: ice is solid, water is liquid. The density is different, the density of ice is 900kgm.

The density of water is 10 kg m. The application is different.

Ice main return should be used in life, industrial cooling and other fields.

Water is mainly used in solvents, life support, electronics industry and other fields. Expand on this: water is necessary for the normal metabolism of the human body, and water has many important functions in the body

1. Water is an important component of cell protoplasm.

2. Water acts as a solvent in the body to dissolve a variety of electrolytes.

3. Water plays a role in transporting nutrients, metabolic wastes and endocrine substances (such as hormones) in the body. Melting point change of ice:

In an atmospheric environment, the melting point of ice is 0. 0 When water freezes into ice, it increases in volume by about 1 9 (the minimum volume of water is 4). It has been observed that when water freezes under closed conditions, the pressure generated by the increase in volume can reach 2500 atmospheres.

There is a wonderful relationship between the melting point of ice and its pressure: below 2200 atmospheres, the melting point of ice decreases with increasing pressure, about 1 degree Celsius for every 130 atmospheres of pressure increase.

First, the similarities.

1. Ice and water are both colorless and transparent substances.

2. The chemical formula is H2O

Second, the differences.

1. Status. Ice: Ice is solid.

Water: Water is in a liquid state.

2. Temperature. Ice: The temperature of the ice is below 0 degrees.

Water: The temperature of the water is above 0 degrees.

First, the similarities.

1. Ice and water are both colorless and transparent substances.

2. The chemical formula is H2O

Second, the differences.

1. Status. Ice: Ice is solid.

Water: Water is in a liquid state.

2. Temperature. Ice: The temperature of the ice is below 0 degrees.

Water: The temperature of the water is above 0 degrees.