Question: A 4-ft3 rigid tank contains saturated refrigerant- 134a at 100 psia. Initially, 20 percent of the volume is occupied by liquid and the rest by

A 4-ft3 rigid tank contains saturated refrigerant- 134a at 100 psia. Initially, 20 percent of the volume is occupied by liquid and the rest by vapor. A valve at the top of the tank is now opened, and vapor is allowed to escape slowly from the tank. Heat is transferred to the refrigerant such that the pressure inside the tank remains constant. The valve is closed when the last drop of liquid in the tank is vaporized. Determine the total heat transfer for this process.

A 4-ft3 rigid tank contains saturated

R-134a ein Sat. vapor P= 100 psia

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