Which among the following gases is difficult | vedclass

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(D) The ease of liquefaction of a gas depends on its critical temperature $(T_{c})$.Gases with higher critical temperatures are easier to liquefy beca

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$O_2$

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(D) The ease of liquefaction of a gas depends on its critical temperature $(T_{c})$.Gases with higher critical temperatures are easier to liquefy because they can be liquefied at higher temperatures.The critical temperatures of the given gases are approximately: $SO_2$ $(430 \ K)$,$Cl_2$ $(417 \ K)$,$NH_3$ $(405 \ K)$,and $O_2$ $(154.6 \ K)$.Since $O_2$ has the lowest critical temperature,it is the most difficult to liquefy among the given options.

Which among the following gases is difficult to liquefy?

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