Which of the following describes the work done by a heat engine?
A. Heat input minus heat output
B. Heat input minus work
C. Heat input plus heat output
D. Heat output minus heat input

In a heat engine a body is configured to do work when placed in alternating contact with hot and cold bodies so that heat can be supplied and absorbed. In simple terms heat engine is a device which converts thermal energy to mechanical energy.

The useful work done by a heat engine is W = Q1 - Q2

where W = work done by heat engine

Q1 = heat input

Q2 = heat output

hence correct answer will be :

A. Heat input minus heat output

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Which of the following describes the work done by a heat engine? A. Heat input minus heat output B. Heat input minus work C. Heat input plus heat output D. Heat output minus heat input

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What is a heat-engine?

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Which of the following describes the work done by a heat engine?
A. Heat input minus heat output
B. Heat input minus work
C. Heat input plus heat output
D. Heat output minus heat input