In an Isothermal change, the change in pressure and volume of a gas can be represented for three different temperature; T 3 > T 2 > T 1 as:

Step-by-step solution

In case of isothermal process, pressure vs volume graph is a rectangular hyperbola. The graph of the isothermal process shifts away from the origin as the temperature of the process is increased. Thus, the curve away from the origin T 3 have the highest temperature whereas the curve closer to the origin T 1 have the lowest temperature. Here, the dotted line shows the isobaric line that implies T 3 > T 2 > T 1 as T = P V n R .