What is White Gas?

When the water vapor in the air meets colder objects, it liquefies into small droplets and floats in the air, so what we see as "white gas". Interpretation: (1). White cloud. The ancients were superstitious and thought they were like swordsmen. (2). Refers to water vapor. (3). Alias of Finch Medicine Grass. See Ming Li Shizhen's Compendium of Materia Medica · Grass Eleven · Weeds.

[bái qì]

Popsicles from the refrigerator,

1.What is the difference between Baiqi of ice cream and hot soup?

Water vapor is invisible. These so-called "white gas" are small water droplets. When the surrounding air encounters ice cream, the temperature immediately decreases and liquefies into small water droplets. Vapor meets air and is formed by liquefaction. So these two kinds of "white gas" are the same principle. The difference is the temperature.

2. The "white qi" of ice cream is drifting downward. Where is the "white qi" of hot soup floating?

Upward, life experience tells us the same. The "white gas" temperature of ice cream is low, the density is large, and it is downward. The "white gas" of hot soup has high temperature, low density and upwards. The density is due to the thermal expansion and contraction of the gas, causing volume changes.

Note: Water vapor liquefies in the cold to form small water droplets, not gas. Liquefaction: exothermic