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Statement 1 : The enthalpy of physisopti...

Statement 1 : The enthalpy of physisoption is greater than chemisorption.
Statement 2 : Molecules of adsorbate and adsorbent are held by van der Waal's forces in physisorption and by chemical bonds in chemisorption.

A

Statement 1 is True, statement 2 is True, Statement 2 is Correct explanation for Statement 1.

B

Statement 1 is True, Statement 2 is True, Statement 2 is NOT a correct explanation for Statement 1.

C

Statement 1 is True, Statement 2 is False.

D

Statement 1 is False, Statement 2 is True.

Text Solution

Verified by Experts

The correct Answer is:
D
The enthalpy of chemisorption is of the order of `40-400 kJ mol^(-1)` while for physical adsorption it is of the order of `20-40 kJ mol^(-1)`.
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