A heat engine receives 7000 J of heat and loses 3000 J in each cycle.What is the efficiency of this engine?
A)57%
B)30%
C)70%
D)43%

Name: A heat engine receives 7000 J of heat and loses 3000 J in each cycle.What is the efficiency of this engine? A)57% B)30% C)70% D)43%
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Question

Quizplus · Accepted Answer

The efficiency of a heat engine is given by the formula: Efficiency = (Heat input - Heat output) / Heat input * 100%. Substituting the given values, we get Efficiency = (7000 J - 3000 J) / 7000 J * 100% = 4000 J / 7000 J * 100% = 57%.

A Heat Engine Receives 7000 J of Heat and Loses