A 2 m3 insulated tank containing ammonia at 61485 20 61616 C, 80 quality, is connected by a valve to line flowing ammonia at 2 MPa, 60 61616 C The valve is opened, allowing ammonia to flow into the tank At what pressure should the valve be closed if the manufacturer wishes to have 15 kg of ammonia ...

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A 2-m3 insulated tank containing ammonia at 20C, 80% quality, is connected by a valve to line

Question:

A 2-m3 insulated tank containing ammonia at 20C, 80% quality, is connected by a valve to line flowing ammonia at 2 MPa, 60C. The valve is opened, allowing ammonia to flow into the tank. At what pressure should the valve be closed if the manufacturer wishes to have 15 kg of ammonia inside at the final state?