Which of the following graphs between pressure 'p' versus volume 'V' represents the maximum work done?

Concept: Work done in a P-V diagram is the area under the curve (W = ∫P dV). For the same initial and final states, the path that maintains higher pressure during expansion gives maximum work.

Explanation: All graphs represent expansion from (P = 2 bar, V = 22.4 L) to (P = 1 bar, V = 44.8 L). The curve that stays at higher pressure for most of the volume change encloses the largest area. Among the given options, graph B maintains comparatively higher pressure throughout expansion, so it gives maximum area under the curve.

Answer: Option B