A) \[\left( P+\frac{{{n}^{2}}a}{{{V}^{2}}} \right)(V-nb)=RT\]
B) \[\left( P+\frac{na}{{{V}^{2}}} \right)(V-nb)=RT\]
C) \[\left( P+\frac{a}{{{V}^{2}}} \right)(V-nb)=nRT\]
D) \[\left( P+\frac{{{n}^{2}}a}{{{V}^{2}}} \right)(V-b)=RT\]
Correct Answer: A
Solution :
The van der Waals equation for n molecules of a gas is \[\left[ P+\frac{{{n}^{2}}a}{{{V}^{2}}} \right](V-nb)=RT\] Here, a and b are vander Waals constants.
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