A piston-cylinder device with a set of stops initially contains 0.3 kg of steam at 1.0 MPa and 400 °C. The location of the stops corresponds to 60% of the initial volume. Now, steam loses heat to the surroundings and the piston moves down hitting the set of stops. After the piston hits the set of stops, the cooling continues until the cylinder contains water at 100 °C. Determine: (a) the initial volume of steam (b) the total heat transfer (Q) of the steam by the time the piston first hits         the stops (c) the final pressure and the quality (if mixture) when the water cools to           100 °C.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A piston-cylinder device with a set of stops initially contains 0.3 kg of steam at 1.0 MPa and 400 °C. The location of the stops corresponds to 60% of the initial volume. Now, steam loses heat to the surroundings and the piston moves down hitting the set of stops. After the piston hits the set of stops, the cooling continues until the cylinder contains water at 100 °C. Determine:

(a) the initial volume of steam

(b) the total heat transfer (Q) of the steam by the time the piston first hits         the stops

(c) the final pressure and the quality (if mixture) when the water cools to           100 °C.

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