Is fog formed by liquefaction?

Mist is formed by liquefaction.

When the relative humidity reaches 100% when there is sufficient water vapor, a gentle breeze, and the atmosphere is stable, the water vapor in the air will condense into fine water droplets suspended in the air, reducing visibility at the ground level. This The weather phenomenon is called fog.

Most often appear between February and April in spring. Conditions for formation: First, cooling, second, humidification to increase water vapor content. Types include radiation fog, advection fog, mixed fog, evaporative fog, etc.

Extended information:

The formation mechanism of liquefaction:

The process of matter changing from gaseous to liquid. Liquefaction is the reverse process of vaporization, where gas molecules attract each other and condense into liquid. Substances release heat when they liquefy. Any gas below the critical temperature can be liquefied. Liquefaction can be achieved by pressurization or cooling, or a combination of pressurization and cooling.

Gases with critical temperatures higher than or close to room temperature, such as ether, chlorine, ammonia, sulfur dioxide, carbon dioxide and certain hydrocarbons, can be liquefied by compression at room temperature. Gases with very low critical temperatures, such as oxygen, nitrogen, hydrogen, helium, etc., must first be cooled below their critical temperatures and then liquefied by isothermal compression.

Baidu Encyclopedia - Fog