%_In case of physical adsorption, the difference between heat of adsor – McqOptions

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1.	%_In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is_%
A.	Equal to the heat of formation of surface compound
B.	Equal to the heat of wetting
C.	Zero
D.	Called integral heat of adsorption
Answer» C. Zero

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