The V-T curve for the given process is given below. What will be its following P-V curve

Options

A.
B.
C.
D.

Answer

A

Explanation

Process ab is adiabatic expansion. So pressure in the process decreases as
`p = k/v (gamma >1)`
Process BC is straight line passing through origin that means T = kV. From ideal gas equation, T = `(p/(nR))V`
So pressure during the process must be constant. Process ca is isothermal. Final p-V graph will have three sections :
(1) isothermal (2) adiabatic (3) isobaric