Question
A heat engine does $800 \mathrm{~J}$ of work and dumps $1400 \mathrm{~J}$ of heat to the cold reservoir. What's its efficiency?(a) 0.22 ;(b) 0.36;(d) 0.64 .(c) 0.57
Step 1
We are asked to find the efficiency of the engine. We know that the heat taken from the hot reservoir is $Q_H = Q_C + W$. Show more…
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