At high pressure, the van der Waal's equation is reduced to :

(P + \frac{n^{2} a}{V^{2}}) = n R T

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P (V - b) = n R T

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P (V - n b) = n R T

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P V = n R T

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Solution

The correct option is C $P (V - n b) = n R T$
According to vander waal's equation,
$[P + \frac{n^{2} a}{V^{2}}] [V - n b] = n R T$
At high pressure, $a / V^{2}$ can be neglected in comparison to $P$ so equation becomes :
$P [V - n b] = n R T$
$P V = n R T + n P b$
$P V > n R T$

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Similar questions

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

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

p = \frac{n R T}{V - n b} - a (\frac{n}{b})^{2}

p = \frac{n R T}{V}

(p + \frac{n^{2} a}{V^{2}}) (V - n b) = n R T

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