4.5 moles of an ideal gas (closed system) initially at at 163 °C and 9.00 bar undergoes an irreversible, adiabatic process until the final pressure is 7.00 bar. The work done during the process is -335 J. Calculate ΔSsys and ΔSsurr for the process. CPm = 22.7 J/(K mol)
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