𝕨𝕙𝕪 𝕖𝕧𝕒𝕡𝕠𝕣𝕒𝕥𝕚𝕠𝕟 𝕔𝕒𝕦𝕤𝕖𝕤 𝕔𝕠𝕠𝕝𝕚𝕟𝕘?

ehrumu

1 month ago

Evaporation cools things down because of picky molecules.

*The quick version*:
Liquid water is a mix of fast + slow moving molecules. The fastest ones have enough energy to break free and become vapor. When they escape, they take their heat with them.

*What’s left behind*:
The slower, cooler molecules stay in the liquid. Less average energy = lower temperature. That’s why your skin feels cold after sweat dries.

Same reason blowing on hot soup helps — you speed up evaporation and carry heat away.