Blow on your hand with your open mouth and you feel the warmth of your breath. Pucker your lips so your breath expands as you blow and your breath is

Name: Blow on your hand with your open mouth and you feel the warmth of your breath. Pucker your lips so your breath expands as you blow and your breath is
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Question

Quizplus · Accepted Answer

When you pucker your lips and blow, the air expands and cools down as it leaves your mouth, making your breath feel cooler. This is due to the principle of adiabatic expansion.

Blow on Your Hand with Your Open Mouth and You