If an engine operates on an input temperature of 800K and an exhaust temperature of 600K, calculate the efficiency of the engine?
We need more than input and output temperatures to measure the efficiency of an engine. The efficiency of internal combustion engines depends on several factors, one of which is the compression ratio. Most gasoline engines have a geometric compression ratio (the compression ratio calculated purely from the geometry of the mechanical parts) of 10:1 (premium fuel) or 9:1 (regular fuel), with some high-performance engines reaching a ratio of 12:1 with special fuels.
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