Which of the following statement(s) is /are incorrect:

Statement - 1: Reversible isothermal compression of an ideal gas represents the limiting minimum value of the work done (|w|) by the surrounding on the system

Statement - 2: In an irreversible process, the cyclic integral of work is not zero.

Statement - 3 : For thermodynamic changes in adiabatic process  $\mathrm{T}\left(\frac{{\mathrm{C}}_{\mathrm{p}.\mathrm{m}}}{\mathrm{R}}\right).\mathrm{P}=\mathrm{constant}$

Statement - 4: $∆{\mathrm{S}}_{\mathrm{system}}$ is zero for reversible adiabatic expansion of an ideal gas.