Question

Why does blowing over a spoonful of hot tea cools it?

Answer 1

Things cool when the hotter molecules escape, which lowers the overall average energy and thus the temperature. When hot molecules of coffee/soup/tea bump into the air above them, they transfer energy to the air.

Hope it helped:-):-)

Answer 2

hey,

here is your answer:-

when we blow air is released this air goes over the spoonfil of hot tea and it cools the hot tea as the air particles diffuses with the molecules of hot tea..

this diffusion makes the temperature low and therefore it cools down to normal temperature..