Chapter 15, Problem 5P

To determine

To find: P − V diagram of given process.

Explanation of Solution

Introduction:

Volume of air is $1L$ initially at $4.5$ atm and expand iso-thermally until pressure is $1$ atm. It is then compressed at constant pressure to its initial volume and lastly brought to its original pressure by heating at constant volume.

For the isothermal process = $P_1{V}_1=P_2{V}_2$ (T is constant)

  $\begin{array}{l}(4.5\times 1)=\left(1\times V_2\right)\\ V_2=\frac{(4.5\times 1)}{1}=4.5L\end{array}$