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(B) Adsorption is an exothermic process. According to Le Chatelier's principle, for physical adsorption, the extent of adsorption $(x / m)$ decreases

Vedclass · Accepted Answer

$T_4 > T_3 > T_2$

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(B) Adsorption is an exothermic process. According to Le Chatelier's principle, for physical adsorption, the extent of adsorption $(x / m)$ decreases with an increase in temperature at a constant pressure.From the given graph, at a constant pressure, the extent of adsorption follows the order: $T_2 > T_3 > T_4$.Since the extent of adsorption is inversely proportional to temperature for physisorption, the correct order of temperatures is $T_4 > T_3 > T_2$.

The graph given below shows the relationship between the extent of adsorption $(x / m)$ and pressure at different temperatures. The correct order of temperatures for curves $i$, $ii$, and $iii$ is:

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