A Carnot cycle operates between two reservoirs at temperatures T1 and T2 (with T1 > T2). During each cycle, an amount of heat Q1 is extracted from the reservoir at T1 and Q2 is delivered to the reservoir at T2. Which of the following statements is INCORRECT?

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Physics · Thermodynamics

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Correct answer

Entropy of the universe (consisting of the working substance and the two reservoirs) increases.

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Answer 1

Entropy of the universe (consisting of the working substance and the two reservoirs) increases.

Answer 2

Entropy of the hotter reservoir decreases.

Answer 3

Q1T1 = Q2T2

Answer 4

Work done in one cycle is Q1 - Q2.

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