Question

An ideal gas undergoes an isothermal process. The pressure P of the gas is plotted against the mean free path '$\lambda$' of the molecules. Select the correct graph.

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

$\lambda =\frac{KT}{\sqrt{2}\pi D^{2}P}\Rightarrow \lambda$ P=constant.

This is an equation of rectangular hyperbola, which is depicted in this graph.