Calculate the work and change of enthalpy at adiabatic reversible compression of $4$ moles of ideal gas from the initial pressure $p_1=0\mathrm{.}15$MPa and the temperature $T_1=323K$ to three times the pressure $p_1.$ The mean molar isobaric heat capacity of the gas has a value of $C_{pm}=34\mathrm{.}7J{K}^{-1}mo{l}^{-1}.$