Engineering Board Exam Reviewer · Thermodynamics · medium
Air at 100 kPa is compressed isentropically to one-tenth of its original volume. What is the final pressure? (k = 1.4)
- 1000.0 kPa
- 251.2 kPa
- 2511.9 kPa
- 517.9 kPa
Answer
C. 2511.9 kPa
Solution
P2 = P1(V1/V2)k = 100(10)1.4 = 2511.9 kPa.
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