Question

Consider the process on a system shown in the figure below ( $P$ –Pressure, $V$ –Volume). During the process, the work done by the system

• A. continuously increases.
• B. continuously decreases.
• C. first increases then decreases.
• D. first decreases.

Answer 1

Answer: (A)

Work done by the system is area under $P-V$ curve. During the process, area under $P-V$ curve continuously increases and hence the work done by the system continuously increases.