1 year ago

Air escaping out from an air hose at a gas station always feels cool. Why?

1 answer:

8 0

Answer:

The air is contained at a high pressure in the tube. When it escapes from a small orifice, it suddenly expands. A large amount of its heat is absorbed in the process of expansion resulting in considerable fall in its temperature. This is why the escaping air feels cold.

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Air escaping out from an air hose at a gas station always feels cool. Why? ​

Air escaping out from an air hose at a gas station always feels cool. Why?