Question

how gases can be liquefy​

Answer 1

Answer:

In general, gases can be liquefied by one of three general methods: (1) by compressing the gas at temperatures less than its critical temperature; (2) 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; and (3) by making gas do work against ...

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Answer 2

Answer:

Explanation:

When gas is cooled till its critical temperature, the gas state starts converting into a liquid state. Above this temperature, the gas state will exist and below this temperature, the liquid state will exist. As the pressure increases above the critical temperature, more and more compression of liquid takes place.

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