At low pressure, the van der waals equation become :

{P V}_{m} = R T

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{P (V}_{m} - b) = R T

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(P + \frac{a}{V_{m}^{2}}) V_{m} = R T

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P = \frac{R}{V_{m}} + \frac{a}{V_{m}^{2}}

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Solution

The correct option is C $(P + \frac{a}{V_{m}^{2}}) V_{m} = R T$
At low pressure, the van der waals equation become $(P + \frac{a}{V_{m}^{2}}) V_{m} = R T$
Hence, Option "C" is the correct answer.

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Similar questions

[P + \frac{a}{V^{2}}] (V - b) = R T

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P V_{M} = R T [A + \frac{B}{V_{M}} + \frac{C}{V_{M}^{2}} + . . .]

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[P + \frac{a}{V^{2}}] V = R T

[P + \frac{a}{V^{2}}] V = R T

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