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13. A 1 m tank containing air at 25C and 500 kPa is connected through a valve to another tank containing 5 kg of

13. A 1 m tank containing air at 25C and 500 kPa is connected through a valve to another tank containing 5 kg of air at 35C and 200 kPa. The valve is opened, and the entire system was allowed to reach thermal equilibrium with the surroundings at 20C. Determine the volume of the second tank and the final equilibrium pressure of air. Ans. 2.21 m, 284.1 kPa

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