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Two ends of a rod are kept at 127°C and 227°C. When 2000 cal of heat flows in this rod, then the change in entropy is
Select one:
  • a)
    6.9 cal/K
  • b)
    1.0 cal/K
  • c)
    0.7 cal/K
  • d)
    20 cal/K
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Two ends of a rod are kept at 127°C and 227°C. When 2000 cal o...
Change in heat = 200 Cal. Change in temperature = 500 – 400 = 100
Change in entropy


ΔS = 20 cal./K
The correct answer is: 20 cal/K
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Two ends of a rod are kept at 127°C and 227°C. When 2000 cal o...
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Two ends of a rod are kept at 127°C and 227°C. When 2000 cal of heat flows in this rod, then the change in entropy isSelect one:a)6.9 cal/Kb)1.0 cal/Kc)0.7 cal/Kd)20 cal/KCorrect answer is option 'D'. Can you explain this answer?
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