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The following problem description applies also to the next two problems. A piston-cylinder device contains 2 kg of...

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Mechanical Engineering

The following problem description applies also to the next twoproblems.

A piston-cylinder device contains 2 kgof a saturated liquid mixture at an initial state 1 withp1= 100 kPa andx1= 0.8. The water is heatedat constant pressure until its final state 2 withvolume V2 =1.947V1.

Its initial volume, in m3/kg, is closer to:

2.990

3.836

2.711

4.625

2.345

1.736

2.156

1.294

Its final temperature, in oC, is closer to:

268

167

300

142

280

220

188

325

The amount of heat supplied to the steam during the expansionprocess, in kJ, is closer to:

1702

750

1992

2210

1623

1248

984

1110

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