An amount of heat Q is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB. What is the change in the entropy andDelta;s of the combined system?Select one:a)b)c)d)Correct answer is option 'C'. Can you explain this answer?

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An amount of heat Q is transferred from a heat reservoir at temperature T_A to another heat reservoir at temperature T_B. What is the change in the entropy Δs of the combined system?
Select one:

Correct answer is option 'C'. Can you explain this answer?

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Second Law Of Thermodynamics MCQ Level – 2 (Part - 2)

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An amount of heat Q is transferred from a heat reservoir at temperatur...

Conventionally, heat given to the system is taken to be positive and heat extracted from the system is taken to be negative.
When heat is changed in the system entropy changed by an amount,
∴ For A

Similarly for B,

ΔS = ΔS_A + ΔS_B

The correct answer is:

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An amount of heat Q is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB. What is the change in the entropy Δs of the combined system?Select one:a)b)c)d)Correct answer is option 'C'. Can you explain this answer?

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