Browse Questions

(a) decrease in enthalpy and increase in entropy

(b) increase in enthalpy and decrease in entropy

(c) decrease in enthalpy and decrease in entropy

(d) no change in enthalpy and entropy

Answer: decrease in enthalpy and decrease in entropy

Adsorption is accompanied by decrease in enthalpy $(\Delta H =-ve)$ and decrease in entropy $(\Delta S = -ve)$.