A total of of thermal energy is to be transferred from a large reservoir at to another at

PHYSICS · Single correct · A Level · Physics · Engineering physics · Engineering physics

Problem

A total of

1000\,\text{J}

of thermal energy is to be transferred from a large reservoir at

500\,\text{K}

to another at

300\,\text{K}

. If the transfer were accomplished reversibly by a heat engine operating between the two reservoirs, which of the following is the best estimate of the maximum useful work that could be obtained? (a)

600\,\text{J}

(b)

400\,\text{J}

(c)

1000\,\text{J}

(d)

200\,\text{J}

Related theory

Second Law of Thermodynamics
Second Law & Entropy
Heat Engines
Second law and Carnot cycle
Thermodynamics
Carnot engine

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