Question

Which of the following statements is incorrect regarding physisorption ?

• A. It occurs because of vander Waal’s forces
• B. More easily liquefiable gases are adsorbed readily
• C. Under high pressure it results into multi molecular layer on adsorbent surface
• D. Enthalpy of adsorption $\left(\Delta H_{\text{adsorption}}\right)$ is low and positive

Answer 1

Answer: (D)

Enthalpy of adsorption regarding physissorption is not positive and it is negative