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MMLU-Pro / 11363 / A cylinder piston arrangement compresses air at 70°F and 14.7 psia to 294 psia.…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A cylinder piston arrangement compresses air at 70°F and 14.7 psia to 294 psia. The compression follows a reversible process defined by the relation PV^1.3 = C. (a) Calculate the work performed and the heat transferred in this case, (b) Also calculate the specific heat. In this case the specific heat is considered to be a constant. Q - W = \DeltaE = \DeltaU

category

engineering

options

  1. - 88,400 ft-lbm, - 26.7 Btu, - 0.0530 Btu/lb degree
  2. - 100,000 ft-lbm, - 32 Btu, - 0.0570 Btu/lb degree
  3. - 96,500 ft-lbm, - 30.5 Btu, - 0.0545 Btu/lb degree
  4. - 93,800 ft-lbm, - 29.1 Btu, - 0.0552 Btu/lb degree
  5. - 91,000 ft-lbm, - 27 Btu, - 0.0525 Btu/lb degree
  6. - 95,800 ft-lbm, - 30.1 Btu, - 0.0522 Btu/lb degree
  7. - 90,000 ft-lbm, - 25 Btu, - 0.0500 Btu/lb degree
  8. - 85,000 ft-lbm, - 24 Btu, - 0.0510 Btu/lb degree
  9. - 97,000 ft-lbm, - 31.5 Btu, - 0.0560 Btu/lb degree
  10. - 92,500 ft-lbm, - 28 Btu, - 0.0540 Btu/lb degree

src

stemez-Thermodynamics

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