If the system involves gaseous substance, then pressure volume work `W_(pv) = -P_(ext)DeltaV`. It has been observed that,
`W_(rev) gt W_(ir)`.

Also the work of isothermal `&` adiabatic processes are different from each other :
`W_(isothermal reversible) = 2.303 nRT log(v_2/v_1)`
`W_(adiabatic reversible) = -C_v(T_2-T_1)`
If `W_1, W_2, W_3, W_4` are work done in isothermal, adiabatic, isobaric & isochoric reversible processes, then correct sequence would be

Options

A. `W_1 gt W_2 gt W_3 gt W_4`
B. `W_3 gt W_2 gt W_1 gt W_4`
C. `W_3 gt W_2 gt W_4 gt W_1
D. `W_3 gt W_1 gt W_2 gt W_4`

Answer

D