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In an adiabatic process the work done is 50 KJ, what is its internal energy?(a) 50 KJ(b) 25 KJ(c) -50 KJ(d) -25 KJThe question was posed to me in exam.The question is from Thermodynamic Terms in division Thermodynamics of Chemistry – Class 11

Answer»

The correct option is (c) -50 KJ

To elaborate: The TOTAL energy in an adiabatic process is zero, so internal energy is equal to the NEGATIVE of the work DONE. Here work done is given by 50 kilojoules, so the internal energy is -50 kilojoules as the SUM of internal energy and the work done should be zero.



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