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please explain instead of using math. please type your answer:)

2. Suppose that a student purses his/her lips and starts blowing air into a hot cup of tea. Explain why the exhaled air has a
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Answer #1

Because , exhaled breath is at body temperature when it leaves our mouth, regardless of velocity but tea is much hotter than that of air blown out. When we blow out air keeping our lips closer, the same air with same temperature comes out of course, that stream of air expands very rapidly (adiabatic), and when air expands, it cools down (cause it uses its own internal energy to push the surrounding air away and make way for its expansion) but the temperature of tea is much higher than that of air blown.

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