# Real gas equation at high molar volume

How would the van der Waals equation of state look like when molar volume of gas is high? Does high molar volume correspond to low pressure?

My textbook says that

A real gas behaves similar to an ideal gas in the limit of large molar volumes.

What is the reason behind that?

• What does the van Der Waals equation look like in the limit of $P<<\frac{a}{V^2}$ and $V>>b$? – Chet Miller Feb 14 at 14:28
• Sorry. I meant $P>>\frac{a}{V^2}$. – Chet Miller Feb 14 at 18:34