why do tanks of compressed air get cold, to the point of frosting over, when the gas is let out quickly?

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why do tanks of compressed air get cold, to the point of frosting over, when the gas is let out quickly?

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Anonymous 0 Comments

It’s responding to the ideal gas law.

P V = n R T

[Here’s a video](https://youtu.be/BxUS1K7xu30) explaining things a little better yet keeping it simple.

Basically, when releasing the gas, the ammount of molecules inside the cannister go down, lowering the pressure. Everything gets so low that temperature also has to go down to compensate all these changes.

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