The following graph is obtained for physisorp | vedclass

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Question

(D) Physical adsorption (physisorption) is an exothermic process. According to Le Chatelier's principle,an increase in temperature decreases the exten

Vedclass · Accepted Answer

$T_1 < T_3 < T_2$

Vedclass · Answer

(D) Physical adsorption (physisorption) is an exothermic process. According to Le Chatelier's principle,an increase in temperature decreases the extent of adsorption at a constant pressure.From the given graph,at a constant pressure $p$,the extent of adsorption $\frac{x}{m}$ follows the order: $T_2 > T_3 > T_1$.Since $\frac{x}{m}$ is inversely proportional to temperature for physisorption,the temperature order must be the reverse of the adsorption extent order.Therefore,the correct order of temperatures is $T_1 < T_3 < T_2$.

The following graph is obtained for physisorption of a gas as a function of pressure at different temperatures. The correct order of the temperatures is:

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Freundlich adsorption isotherms for the physical adsorption of a gas at temperatures $T_1$,$T_2$ and $T_3$ are shown in the graph given below. The correct relationship between $T_1$,$T_2$ and $T_3$ is:

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