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Posted by on Thursday, April 25, 2013 at 1:18am.

A heat engine absorbs 848 J of energy per
cycle from a high-temperature source. The
engine does 417 J of work during each cycle,
expelling 431 J as heat.
What is the engine’s efficiency?

  • physics - , Thursday, April 25, 2013 at 2:21am

    engine’s efficiency=A/Q =417/848=0.49
    or 49%

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