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A fixed-mass system contains water (H20) in a rigid (fixed-volume) container. The mass of the water...

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Mechanical Engineering

A fixed-mass system contains water (H20) in a rigid(fixed-volume) container. The mass of the water is mass, m=1.805719781 kgs. A process occurs having the following initial andfinal thermodynamic properties.

Initial Pressure: P1 = 1000kPa   Initial Temperature:T1 = 600 oC   Final Temperature: T2 = 140oC

Determine the following: (Neglect changes in kinetic andpotential energy)  

1. 1W2 (work done on.by the system, in kJoules)  

2. 1Q2  (heat transfer to/from the system, inkJoules)

3. (S2 - S1)sys (Entropy change of thesystem, in kJ/K)  

4. What is the maximum temperature of the surroundings (I.e.,T0 in degrees K) for which there is no 2nd Lawviolation? (Hint: consider the net entropy change, system plussurroundings.)

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