Does it turn into a gas at a high temperature, and does a gas turn into a liquid when the temperatur

Water vapor It is a gaseous state of water that has no color.

Formation of water vapor].

When the temperature of water exceeds 100 degrees Celsius (or above the boiling point), the water molecules absorb enough internal energy to convert it into a repulsive force that breaks free from the constraints of the molecules, and the distance between the molecules begins to increase, and the water changes from liquid to gaseous water. This gaseous water does not contain any other substances and is theoretically distilled water (the air contains impurities) also known as water vapor.

When water is below the boiling point, water can also slowly evaporate into water vapor.

Water vapor and water].

Water vapor forms rain].

Scientifically speaking, at room temperature, water will slowly turn into water vapor and fly into the air, this phenomenon is called evaporation. The water on the earth became water vapor, and these water vapors formed white clouds in the sky; If the water vapor condenses into larger water droplets, the water droplets will fall down to form rain.

Water vapor and white gas].

When a large amount of water vapor condenses in the air, it often takes the form of a "white gas", which is often mistaken for water vapor. When the water vapor turned into boiling water is cooled in the air, it is possible to know that the "white gas" is not water vapor, but small water droplets formed by water vapor condensed floating in the air by comparing the color, shape, and location of the water vapor.

Water vapor and water vapor].

Thermophysically:

Water vapor: refers to the fact that all the water in a specific space exists in the form of a gas phase, of course, this must meet certain physical conditions.

Water vapor: refers to the existence of water in a specific space in the form of gas-liquid phase, in which the liquid phase can exist in the form of "fog" dispersion or in the form of a large number of liquid droplets aggregation, of course, this must also meet certain physical conditions. In practice, most of the exposure refers to "water vapor".

The 2000 edition of the Modern Chinese Dictionary explains as follows:

Steam: 1liquids or specific gases that are turned into by heat, such as water vapor; 2.Specifically refers to water vapor: steam engines, steamboats.

Gas: 1Gas.

2.Specifically refers to air. 4.

Phenomena such as hot and cold in nature. ......Among them, 1 and 4 are also explained in the Dictionary of Common Words in Ancient Chinese. "Liezi Tianrui":

Hauni, clouds, wind and rain, four o'clock, this accumulation of qi is also the sky.

White gas "inside or outside].

In the summer air-conditioned room is made of glass, white gas on the outside. It is the outdoor water vapor that hits the cold glass and liquefies to form white gas.

Winter air-conditioned room with white gas in the interior. It is the water vapor in the room that hits the cold glass and liquefies to form white gas.

The temperature of water vapor and the temperature of water].

The maximum temperature of water is 100, while the maximum temperature of water vapor is higher than the maximum temperature of water.

If you are burned, it is even more severe if you are burned by water vapor.

There are two ways in which the state of matter is qualified.

Pressure and temperature.

You want to. Iron can melt at high temperatures.

At any higher temperature, it becomes a gaseous state.

So the temperature rises.

Liquids turn into gases.

But if you put pressure on it at this time.

The gas will liquefy again.

This is the pressure cooker.

The principle. At high pressure, the gas turns into a liquid.

Thus raising the boiling point.

So the boiling point of water under high pressure is higher than 100 degrees Celsius.

It is also the reason why the boiling point of the water under the plateau is below 100 degrees Celsius (the plateau air pressure is low.

So so. If the temperature rises, the high pressure also increases.

Gases can turn into liquids.

It may also vaporize into gas.

The gas becomes a liquid when pressurized, and the temperature can remain the same.

According to the ideal equation of state. pv

nrt where n

is the amount of matter, r

is constant. If the temperature does not change. Pressure. And.

Volume. inversely proportional.

Other words. As soon as the pressure increases to a certain level, the gas becomes liquid.

The gas in the lighter should be the same as at room temperature, but the pressure is larger, making it liquid, if the temperature is very low, even if the heat transfer is not good, the firearm case should not be completely insulated.

Hope it helps.

PV = = NRT (P - gas pressure, V - gas volume, N gas substance, R - gaseous constant, T - absolute temperature). When both the pressure and volume increase, the thermodynamic temperature must increase (because NR does not change).

When the gas temperature increases, the average kinetic energy of the molecular thermal motion increases, the average rate of the molecular thermal motion increases, the average impact force of the molecular collider wall increases, and the number of collisions with the unit area of the vessel wall in the same time also increases, resulting in an increase in pressure and an increase in the gas.