Consider a reversible, adiabatic process. This process increases the entropy of the Universe. 1) True 2) False 3. Consider a reversible, adiabatic process. This process increases the entropy of the system. 1) True 2) False 4. Consider an irreversible, adiabatic process. This process increases the entropy of the system. 1) True 2) False 5. Adiabatic expansion of an ideal gas into vacuum leaves the enthalpy of the system unchanged. 1) True 2) False 6. Adiabatic expansion of an ideal gas into vacuum leaves the entropy of the system unchanged. 1) True 2) False 7. A process that increases temperature of the system must change the entropy of the surroundings. 1) True 2) False 8. Diesel fuel makes the Otto engine more efficient than the Carnot engine. 1) True 2) False