Question

At extremely low pressure van der Waal’s equation can be expressed as

• A. $(P+\frac{a{n}^2}{V^2})V=nRT$
• B. $p(V-nb)=nRT$
• C. $PV=nRT$
• D. $Noneoftheabove$

Answer 1

The correct option is C

$PV=nRT$

At very low pressure, V is very large and the value of $\frac{a{n}^2}{V^2}$ is very small. Hence both correction factors can be ignored.