At the equilibrium position in the process of adsorption ..........

1.   ΔH > 0

2.   ΔH = TΔS

3.   ΔH > TΔS

4.   ΔH < TΔS

 

 
HINT: At equilibrium , G = 0
 
Explanation: 

As we know that, at equilibrium ΔG=0

           We know that ; G = H - TS

                                        ΔH−TΔS = 0                     

                                       ∆H = T∆S

Hence, at equilibrium enthalpy changes equal to product of temperature and entropy change.