A) temperature is sufficient high and pressure is low.
B) temperature is sufficient low and pressure is high.
C) both temperature and pressure are very high.
D) both temperature and pressure are very low.
Correct Answer: A
Solution :
[a] Given \[P=\frac{nRT}{V-nb}-a{{\left( \frac{n}{V} \right)}^{2}}\] Which can also be written as \[\left[ P+\frac{{{n}^{2}}a}{{{V}^{2}}} \right](V-nb)=nRT\] At low pressure and high temperature the a effect of \[\frac{a}{{{V}^{2}}}\] and b is negligible hence \[PV=nRT.\]
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