Question: A closed, rigid tank whose volume is 1 . 9 m ^ 3 contains Refrigerant 1 3 4 a , initially a two - phase

"A closed, rigid tank whose volume is 1.9 m^3 contains Refrigerant 134a, initially a two-phase liquidvapor mixture at 10C. The refrigerant is heated to a final state where temperature is 50C and quality is 100%.
Determine the mass of vapor present at the initial and final states, each in kg."

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