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When you blow on the back of your hand with your mouth
Chapter 19, Problem 11DQ(choose chapter or problem)
QUESTION:
When you blow on the back of your hand with your mouth wide open, your breath feels warm. But if you partially close your mouth to form an “o” and then blow on your hand, your breath feels cool. Why?
Questions & Answers
QUESTION:
When you blow on the back of your hand with your mouth wide open, your breath feels warm. But if you partially close your mouth to form an “o” and then blow on your hand, your breath feels cool. Why?
ANSWER:Solution 11DQ Step 1 of 3: When we blow on the back of our hand with our mouth wide open, our breath feels warm. Because, the body temperature is different from the surrounding.