A) Enthalpy of adsorption is negative
B) Energy appears as heat
C) On adsorption, the residual forces on the surface are increased
D) Entropy of adsorption in negative
Correct Answer: C
Solution :
[c] Adsorption is a phenomena of attracting and retaining the molecules of a substance on the surface of a liquid or a solid resulting into a higher concentration of the molecules on the surface. After adsorption there is a decrease in the residual forces due to bond formation \[\Delta G,\Delta H\And \Delta S\]all are negative in the case of adsorption.
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