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1. During an isothermal process, 65.999 J of heat is removed from an ideal gas. What...

1. During an isothermal process, 65.999 J of heat is removed from an ideal gas. What is the change in internal energy?

2. A heat engine absorbs 183.569 kcal of heat each cycle and exhausts 11.286 kcal. Calculate the percent efficiency of each cycle.

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