Two spheres, each 6 ft in diameter, are connected by a pipe in which there is a valve. Each sphere contains helium at temperature of 80°F. With the valve closed, one sphere contains 3.75 lb and the other 1.25 lb of helium. After the valve has been open long enough for equilibrium to obtain, what is the common pressure in the spheres if there is no loss or gain of energy.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Two spheres, each 6 ft in diameter, are connected by a pipe in which there is a valve. Each sphere contains helium at temperature of 80°F. With the valve closed, one sphere contains 3.75 lb and the other 1.25 lb of helium. After the valve has been open long enough for equilibrium to obtain, what is the common pressure in the spheres if there is no loss or gain of energy.

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