An ideal heat engine has an efficiency of 60 an... - SS1 Physics Heat and Thermodynamics II Question
An ideal heat engine has an efficiency of 60% and produces 400 J of work output. What is the heat input to the engine?
Efficiency = (Work output / Heat input) x 100%
60% = 400 J / Heat input
Heat input = 400 J / 0.6 = 666.67 J
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