The effect of temperature on the adsorption of gases on solid surfaces can be understood through the adsorption isotherms and the adsorption kinetics. Generally, the adsorption process can be classified into two types: physisorption and chemisorption.Physisorption is the physical adsorption of gas molecules on a solid surface due to weak van der Waals forces. In this case, the adsorption capacity decreases with increasing temperature. This is because physisorption is an exothermic process, and as the temperature increases, the thermal energy of the gas molecules increases, which can overcome the weak van der Waals forces, leading to desorption.Chemisorption, on the other hand, involves the formation of chemical bonds between the gas molecules and the solid surface. It is also an exothermic process, but the adsorption capacity can either increase or decrease with increasing temperature, depending on the activation energy of the reaction. At low temperatures, the adsorption capacity may increase with temperature as the gas molecules have enough energy to overcome the activation energy barrier and form chemical bonds with the solid surface. However, at high temperatures, the adsorption capacity may decrease as the thermal energy of the gas molecules becomes high enough to break the chemical bonds, leading to desorption.Experimental evidence for the effect of temperature on adsorption can be obtained by performing adsorption experiments at different temperatures and measuring the adsorption capacity. For example, the adsorption of nitrogen on activated carbon has been studied extensively, and it has been found that the adsorption capacity decreases with increasing temperature, which is consistent with the physisorption process.Theoretical justification for the effect of temperature on adsorption can be provided by the adsorption isotherms, such as the Langmuir and Freundlich isotherms, which describe the relationship between the adsorption capacity and the gas pressure at a constant temperature. The adsorption isotherms can be derived from the adsorption kinetics, which are based on the assumption that the adsorption process is in equilibrium and that the rate of adsorption is equal to the rate of desorption. The Arrhenius equation can be used to describe the temperature dependence of the adsorption rate constants, which can be incorporated into the adsorption isotherms to predict the effect of temperature on the adsorption capacity.In conclusion, the effect of temperature on the adsorption of gases on solid surfaces depends on the type of adsorption process physisorption or chemisorption and the activation energy of the reaction. Experimental evidence and theoretical justification can be provided by performing adsorption experiments at different temperatures and analyzing the adsorption isotherms and kinetics.