Which of the following statements is incorrec | vedclass

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(C) $(i)$ Physical adsorption is a reversible process; it can be reversed by changing temperature or pressure.$(ii)$ The enthalpy of physical adsorpti

Vedclass · Accepted Answer

It requires activation energy.

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(C) $(i)$ Physical adsorption is a reversible process; it can be reversed by changing temperature or pressure.$(ii)$ The enthalpy of physical adsorption is low,typically $20-40 \ kJ \ mol^{-1}$,whereas chemical adsorption has a higher enthalpy of $80-240 \ kJ \ mol^{-1}$.$(iii)$ It occurs on all solid adsorbents to some extent and does not require activation energy.$(iv)$ It decreases with an increase in temperature.

Which of the following statements is incorrect for physical adsorption?

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