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← ScienceWhich phenomenon causes temperature increases in diesel engine's compressed intake air during adiabatic compression?
A)Decreased enthalpy of nitrogen molecules
B)Conversion of kinetic energy to thermal energy✓
C)Increased entropy across combustion chamber
D)Reversal of intermolecular forces equilibrium
💡 Explanation
During adiabatic compression, the rapidly decreasing volume forces the gas molecules to collide with increasing frequency, which converts the mechanical energy into kinetic energy, then into thermal energy. Therefore, temperature increases rapidly, rather than decreased enthalpy, entropy increases, or intermolecular force reversals, absent these dynamic effects.
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