A rigid tank contains 6 kg of an ideal gas at 3 atm and 40C. Now a

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A rigid tank contains 6 kg of an ideal gas at 3 atm and 40°C. Now a valve is opened, and half of mass of the gas is allowed to escape. If the final pressure in the tank is 2.2 atm, the final temperature in the tank is
(a) 186°C
(b) 59°
(c) -43°C
(d) 20°C
(e) 230°C
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Thermodynamics An Engineering Approach

ISBN: 978-0073398174

8th edition

Authors: Yunus A. Cengel, Michael A. Boles

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