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Which thermodynamic consequence results when heat leaks into an adiabatic diesel engine cylinder?

A)Reduced exergy and cycle efficiency
B)Increased peak pressure during combustion
C)Decreased exhaust gas temperature
D)Maintained constant entropy production

💡 Explanation

Reduced exergy and efficiency result because heat leakage introduces irreversibility, increasing entropy according to the second law of thermodynamics; therefore, A is correct rather than B because the process deviates from adiabatic compression, precluding an increase in peak pressures or constant entropy.

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