What is the difference between physisorption and chemisorption?
|1||In this type of adsorption, the adsorbate is attached to the surface of the adsorbent with weak van der Waal’s forces of attraction||In this type of adsorption, strong chemical bonds are formed between the adsorbate and the surface of the adsorbent|
|2||No new compound is formed in the process.||New compounds are formed at the surface of the adsorbent.|
|3||It is generally found to be reversible in nature.||It is usually irreversible in nature.|
|4||Enthalpy of adsorption is low as weak van der Waal’s forces of attraction are involved. The values lie in the range of 20-40 kJ mol−1.||Enthalpy of adsorption is high as chemical bonds are formed. The values lie in the range of 40-400 kJ mol−1.|
|5||It is favoured by low temperature conditions.||It is favoured by high temperature conditions|
|6||It is an example of multi-layer adsorption||It is an example of mono-layer adsorption.|
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Solution What is the Difference Between Physisorption and Chemisorption? Concept: Adsorption - Types of Adsorption.