Question

2. Write down the equation for efficiency of a heat engine
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Answer 1

Answer:

• [T1 - T2]/T1

Explanation:

Answer 2

Answer:

efficiency =WQH=1−TCTH. These temperatures are of course in degrees Kelvin, so for example the efficiency of a Carnot engine having a hot reservoir of boiling water and a cold reservoir ice cold water will be 1−(273/373)=0.27, just over a quarter of the heat energy is transformed into useful work.