What was the initial pressure in the cylinder

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Reference no: EM131233097

1. A cylinder fitted with a piston contains ammonia at 120 F, 20% quality with a volume of 60 in.³. The ammonia expands slowly, and during this process heat is transferred to maintain a constant temperature. The process continues until all the liquid is gone. Determine the work and heat transfer for this process.

2. A 1-lb mass of water at 600 F expands against a piston in a cylinder until it reaches ambient pressure, 14.7 lbf /in.², at which point the water has a quality of 90%. It may be assumed that the expansion is reversible and adiabatic.

a. What was the initial pressure in the cylinder?

b. How much work is done by the water?

Reference no: EM131233097

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