The heats of adsorption (in $k J / m o l$ ) in physisorption or physical adsorption lie in the range of:

40 - 400

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40 - 100

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10 - 40

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200 - 400

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Solution

The correct option is D $10 - 40$
The heats of adsorption in physisorption or physical adsorption lies in the range of $10 - 40 k J / m o l$ . It is less as compared to chemisorption as there is no chemical reaction involved in it.

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