1.

How gases can be liquefied ? Explain with the help of an example

Answer»

Explanation:

In general GASES can be liquefied by one of three METHODS : 1. by compressing the gas at temperatures LESS than its critical temperature , in this approach, the application of pressure alone is sufficient to CAUSE a gas to change to liquid .

For EXAMPLE- ammonia has a critical temperature of 271°F ( 133°C ).



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