Questions

An ideal gas undergoes four different processes from the same initial state as shown in the figure below. Those processes are adiabatic, isothermal, isobaric and isochoric. The curve which represents the adiabatic process among 1, 2, 3 and 4 is: [Diagram: A P-V diagram with four curves starting from the same initial point. Curve 1 is vertical (isochoric). Curve 4 is horizontal (isobaric). Curve 2 is steeper than Curve 3. Both 2 and 3 are decreasing P with increasing V.]