One mole of an ideal gas goes from an initial state A to final state B via two processes: It first undergoes isothermal expansion from volume V to 3V and then its volume is reduced from 3V to V at constant pressure. The correct P-V diagram representing the two processes is:

Question

Accepted Answer

Diagram (b). In the first process, the gas undergoes isothermal expansion, so the curve is a hyperbola (PV = constant). In the second process, the volume decreases at constant pressure, represented by a horizontal line. Diagram (b) correctly shows these transitions.

One mole of an ideal gas goes from an initial state A to final state B via two processes: It first undergoes isothermal expansion from volume V to 3V and then its volume is reduced from 3V to V at constant pressure. The correct P-V diagram representing the two processes is:

Solution

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