Question

what happens to the enthalpy of the adsorbate when it is adsorbed? what would happen to its extent of adsorption when the temperature is decreased ​

Answer 1

Answer:

The change in enthalpy is denoted to be negative.The reason behind this is that when adsorbate molecules are adsorbed on the surface, freedom of movement of molecules become restricted and this results in a decrease in entropy. At constant temperature and pressure, adsorption occurs spontaneously.