Which of the following factors affects the thermodynamics of adsorption?
Surface area of adsorbent
Nature of adsorbate
Temperature
Pressure
The thermodynamics of adsorption is influenced by temperature. Adsorption is an exothermic process, meaning it releases heat, which is reflected in the enthalpy change ( ). As temperature increases,
becomes less negative or even positive, reducing the spontaneity of the adsorption process. Additionally, temperature affects the entropy change (
), with higher temperatures leading to higher
values. Thus, temperature plays a crucial role in the thermodynamics of adsorption, influencing both
and
, and consequently affecting the overall
value for the adsorption process.