Assertion :Van der Waals' equation is applicable only to non-ideal gases. Reason: Ideal gases obey the equation $P V = n R T$ .

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Assertion
Van der Waals' equation is applicable only to non-ideal gases.
The Van der Waals' equation is $(P + \frac{a n^{2}}{V^{2}}) (V - n b) = n R T$
Reason
Ideal gases obey the equation $P V = n R T$ .

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
Note:
'a' is a proportionality constant called coefficient of attraction. It refers to the pressure correction. Its value depends on the nature of the gas. It corrects for the attractive forces present in a real gas in the van der Waals' equation.
The term 'nb' refers to volume correction.

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Assertion :Van der Waals' equation is applicable only to non-ideal gases. Reason: Ideal gases obey the equation PV=nRT.

Assertion :Van der Waals' equation is applicable only to non-ideal gases. Reason: Ideal gases obey the equation $P V = n R T$ .