Which of the following processes can not be made reversible even under – McqOptions

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1.	Which of the following processes can not be made reversible even under ideal condition of operation?
A.	Free expansion of a gas.
B.	Compression of air in a compressor.
C.	Expansion of steam in a turbine.
D.	all (a), (b) & (c).
Answer» B. Compression of air in a compressor.

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