Which among the following gases is least adso | vedclass

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(D) The extent of adsorption of a gas on a solid surface depends on the ease of liquefaction of the gas. Gases that are easily liquefiable have higher

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$H_2$

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(D) The extent of adsorption of a gas on a solid surface depends on the ease of liquefaction of the gas. Gases that are easily liquefiable have higher critical temperatures $(T_c)$ and are adsorbed more strongly due to stronger van der Waals forces. Among the given gases,$H_2$ has the lowest critical temperature $(T_c \approx 33 \ K)$,whereas $Cl_2$,$NH_3$,and $SO_2$ have significantly higher critical temperatures. Since $H_2$ is the most difficult to liquefy,it is the least adsorbed on a solid surface.

Which among the following gases is least adsorbed on a solid at similar conditions of temperature and pressure?

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