Question: An Otto cycle with air as the working fluid has a compression ratio of 8.2. Under cold-air-standard conditions, the thermal efficiency of this cycle is

An Otto cycle with air as the working fluid has a compression ratio of 8.2. Under cold-air-standard conditions, the thermal efficiency of this cycle is
(a) 24 percent
(b) 43 percent
(c) 52 percent
(d) 57 percent
(e) 75 percent

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