The air standard efficiency of an I.C. engine is given by (where r = Compression

Question

The air standard efficiency of an I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats)

Options:

A . 1 - rγ - 1

B . 1 + rγ - 1

C . 1 - (1/rγ - 1)

D . None of these

Answer: Option C

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