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4. A gas whose composition is not known has 42.2 kJ of paddle work input at constant volme of 566 liters. Initially, p-138 kPaa,

4. A gas whose composition is not known has 42.2 kJ of paddle work input at constant volme of 566 liters. Initially, p-138 kPaa, t-26.7C; finally t-82.2C. What are AU and Qif k-1.21? Ans. 68.9kJ, 26.7kJ

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