How gases can be liquefy? - Vidyadip

Question

How gases can be liquefy?

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Answer

In general, gases can be liquefied by one of three general methods:

By compressing the gas at temperatures less than its critical temperature.
By making the gas do some kind of work against an external force, causing the gas to lose energy and change to the liquid state.
By using the Joule-Thomson effect.

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