Question: Two tanks are connected by a valve and line. The volumes are both 35 ft3 with R-134a at 70 F, quality 25% in A and

Two tanks are connected by a valve and line. The volumes are both 35 ft3 with R-134a at 70 F, quality 25% in A and tank B is evacuated. The valve is opened and saturated vapor flows from A into B until the pressures become equal. The process occurs slowly enough that all temperatures stay at 70 F during the process. Find the total heat transfer to the R-134a during the process.

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