Traditional Culture Encyclopedia - Weather inquiry - Is the "breath" in winter formed by exhaling water vapor? Exhaled gas also contains carbon dioxide. Why is it not liquefied by carbon dioxide?

Is the "breath" in winter formed by exhaling water vapor? Exhaled gas also contains carbon dioxide. Why is it not liquefied by carbon dioxide?

Breathing in winter is formed by exhaling water vapor.

The "breath" we see in winter is formed after the water vapor in the exhaled gas generates liquid. Because water vapor condenses when it is cold and liquefies into small water droplets, which is what we see as "breathing".

There is still carbon dioxide in the exhaled gas, and carbon dioxide will also liquefy. The liquefaction temperature of carbon dioxide should be lower than -37℃. The temperature is not so low in winter. The temperature in the north is sometimes so low, but the content of carbon dioxide is too small, only 0.03% of the air volume.

So what we see is not the liquefaction of carbon dioxide, but the liquefaction of water vapor