Question

waht is efffine.......​

Answer 1

Answer:

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Answer 2

is a device that performs the conversion of heat energy to mechanical work through cyclic process. The efficiency of a heat engine is defined as the ratio of work done by the heat engine to heat absorbed per cycle. If a heat engine absorbs $Q_1$amount of energy from the source and dissipates $Q_2$amount of energy to sink, the efficiency η, is given by,

$η = \frac{Q_1-Q_2}{Q_1} = 1 - \frac{Q_2}{Q_1}$