Why does blowing at a hot cup of tea make it cool?
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Answer:
The speed distribution is qualitatively the same for liquids as it is for gases. ... When you blow into the hot liquid, yes, the air you're causing to come into contact with the liquid is cooler than the liquid itself, and so that heat exchange will help your beverage cool faster.
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Answer:
because of the air which Comes out of out mouth
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