Question

In which condition, adsorption will not take place? a when h is positive and s is negative. b when h is negative. c when g is negative. d when h is positive and s is positive.

Answer 1

Explanation:

Adsorption takes place only when \Delta G <0ΔG<0 i.e. \Delta H- T \Delta S <0ΔH−TΔS<0.

So, if \Delta HΔH is positive and \Delta SΔS is negative then \Delta H- T \Delta SΔH−TΔS will always be positive. So adsorption will not take place.