A 400 ft3 tank of compressed helium is at a pressure of 55 psig and 15°C. It is connected to a smaller tank with a (closed) valve. The smaller tank has a volume of 50 ft3 and contains He at 1 atm (absolute) and the same temperature as the larger tank. If the connecting valve is opened and no temperature changes occur, what is the final pressure in the system (both tanks together).

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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  1. A 400 ft3 tank of compressed helium is at a pressure of 55 psig and 15°C. It is connected to a smaller tank with a (closed) valve. The smaller tank has a volume of 50 ft3 and contains He at 1 atm (absolute) and the same temperature as the larger tank. If the connecting valve is opened and no temperature changes occur, what is the final pressure in the system (both tanks together).

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