Question: Consider two tanks, A and B, connected by a valve. Each has a volume of 200 L and tank A has R-12 at 25C, 10%

Consider two tanks, A and B, connected by a valve. Each has a volume of 200 L and tank A has R-12 at 25C, 10% liquid and 90% vapor by volume, while tank B is evacuated. The valve is now opened and saturated vapor flows from A to B until the pressure in B has reached that in A, at which point the valve is closed. This process occurs slowly such that all temperatures stay at 25C throughout the process. How much has the quality changed in tank A during the process?

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