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Question

In Van der Waals equation of state of the gas law, the constant b is a measure of__.


A

Intermolecular repulsions

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B

Intermolecular collisions per unit volume

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C

Volume occupied by the molecules

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D

Intermolecular attractions

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Solution

The correct option is C

Volume occupied by the molecules


Van der Waals equation for 1 mol is P+an2V2(V-nb) = nRT

Since the excluded volume is significant the correction factor b is introduced.


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