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A Carnot cycle operates on a working substance between two reservoirs at temperatures T1 and T2 ,  where, T1 > T2 . Amount of heat Q1 is extracted from the reservoir at T1 and an amount Q2 is delivered to the reservoir at T2. Which of the following statements is incorrect?
  • a)
    Work done in one cycle is Q– Q2
  • b)
    Entropy for the universe (consisting of the working substance and the two reservoirs) increases
  • c)
  • d)
    Entropy of the hotter reservoir decreases
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A Carnot cycle operates on a working substance between two reservoirs ...
Carnot cycle is a reversible process ideally and in reversible processes the entropy of universe remains constant instead of increasing as in an irreversible process.
 
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A Carnot cycle operates on a working substance between two reservoirs ...
Carnot cycle is a reversible process ideally and in reversible processes the entropy of universe remains constant instead of increasing as in an irreversible process.
 
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A Carnot cycle operates on a working substance between two reservoirs at temperatures T1 and T2 , where, T1 > T2 . Amount of heat Q1 is extracted from the reservoir at T1 and an amount Q2 is delivered to the reservoir at T2. Which of the following statements is incorrect?a)Work done in one cycle is Q1– Q2b)Entropy for the universe (consisting of the working substance and the two reservoirs) increasesc)d)Entropy of the hotter reservoir decreasesCorrect answer is option 'B'. Can you explain this answer?
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