The heat of physisorption is ....

The heat of physisorption is ________.

A

`20 - 40" kJ mol"^(-1)`

B

`40 - 100" kJ mol"^(-1)`

C

`100 - 400" kJ mol"^(-1)`

D

`200 - 400" kJ mol"^(-1)`

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The correct Answer is:

A

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