Question

From the given plot between Z and P , which of the following statements are correct for a real gas?

• A. $T_1=\frac{2a}{Rb}$
• B. $T_2=\frac{a}{Rb}$
• C. $T_3=\frac{a}{Rb}$
• D. $T_4=\frac{2a}{Rb}$

Answer 1

The correct option is B $T_2=\frac{a}{Rb}$

Graph corresponding to $T_2$ shows ideal behaviour for a range of pressure.Hence, $T_2-\frac{a}{Rb}$.
It is at this temperature (called as Boyle's temperature) that the attractive forces and the repulsive forces acting on the gas particles balance out.The value of compressibility factor becomes unity in this range, similar to ideal gas.