(1h). (2.5p) Circle the valid statements associated with adiabatic process, reversible process, andisentropic process of a closed system. (a) A reversible, adiabatic process is an isentropic process (b) The entropy

generation of a reversible process is zero (c) The entropy is constant for an isentropic process (d) For an adiabatic system, the entropy of the system cannot decrease_for both closed and control volume systems; (e) All above