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Adsorption of gases on solid surface is ...

Adsorption of gases on solid surface is generally exothermic because

A

enthalpy is positive

B

entropy decreases

C

entropy increases

D

free energy increases

Text Solution

Verified by Experts

The correct Answer is:
B
In adsorption there in bond formation between the gases and solid surface which decreases the entropy so to make it spontaneous the enthalpy charge must be negative.
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