Question

A real gas within a closed chamber at \( 27^\circ \text{C} \) undergoes the cyclic process as shown in the figure. The gas obeys the equation \( PV^3 = RT \) for the path A to B. The net work done in the complete cycle is (assuming \( R = 8 \, \text{J/molK} \)): 

• A. 225 J
• B. 205 J
• C. 20 J
• D. \( -20 \, \text{J} \)

Hint:

For cyclic processes, calculate the work done for each stage and combine the results. Always account for the nature of each segment—whether it is isochoric, isobaric, or follows a specific relation between pressure and volume.