In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when_______________?
Correct answer: B. n = 1
- A. n = y = 1.4
- B. n = 1
- C. n = 0
- D. n = 1.66
Explanation
For compression between the usual specified inlet and outlet pressures, isothermal compression, n = 1, requires the least work because heat removal keeps the gas temperature and pressure rise as low as possible. Adiabatic compression, n = 1.4, requires more work; n = 0 represents constant pressure rather than a normal pressure-producing compressor process.
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