Which of the following statements is correct for the spontaneous adsorption of a gas?

ΔS [change in entropy] and ΔH [change in enthalpy] are related by the equation ΔG=ΔH−TΔS[Here, ΔG = change in Gibb's free energy]For adsorption of a gas, ΔS in negative because randomness decreases. Thus, in order to make ΔG negative.[for spontaneous reaction], ΔH must be highly negative because reaction is exothermic.Hence, for the adsorption of a gas, if ΔS is negative, therefore, ΔH should be highly negative.