A heat engine is claimed to absorb of heat from a source at

PHYSICS · Subjective · A Level · Physics · Engineering physics · Engineering physics

Problem

A heat engine is claimed to absorb QH=1000 JQ_H = 1000\,\text{J} of heat from a source at TH=600 KT_H = 600\,\text{K}, reject QC=150 JQ_C = 150\,\text{J} to a sink at TC=300 KT_C = 300\,\text{K}, and produce W=850 JW = 850\,\text{J} of work in each cycle. Calculate the net change in entropy of the two reservoirs for one complete cycle and state whether the claim is consistent with the Second Law.

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