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    A heat engine absorbs 64 kcal of heat each cycle and exhausts 42 kcal.

    Calculate the work done each cycle? 22 kcal 42 kcal 64 kcal 106 kcal 2.The work done on an ideal gas system in an isothermal process is -400 J. What is the change in internal energy? zero -400 J 400 J none of the above
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