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Which statement is incorrect ?...

Which statement is incorrect ?

A

Carnot cycle has the maximum efficiency in all cycles

B

Carnot cycle is a reversible one

C

Reversible cycle has more efficiency than an irreversible one

D

All reversible cycles have the same efficiency

Text Solution

Verified by Experts

The correct Answer is:
D
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MBD PUBLICATION-THERMODYNAMICS-QUESTION BANK
  1. For which of the following combinations of working temperatures, the e...

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  2. A carnot engine has the same efficiency between 800 K and 500 K and x ...

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  3. Which statement is incorrect ?

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  4. Even carnot engine cannot give 100% efficiency because we cannot

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  5. The power of a carnot engine is

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  6. An ideal carnot engine, whose efficiency is 40%, receives heat from th...

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  7. The efficiency of an ideal heat engine can be100% if the sink (exhaust...

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  8. A carnot engine has the same efficiency between 100 K and 500 K and T ...

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  9. A carnot engine first works between 100^@C and 0^@C and then between 0...

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  10. A carnot engine takes in heat from a reservoir of heat at 427^@C and g...

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  11. In the carnot engine, heat Q1 is absorbed from the source at temperatu...

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  12. The temperatures of the source and the sink of a heat engine are 127^@...

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  13. Ina Carnot engine, the temperature of the reservoir is 927^@C and that...

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  14. In an ideal refrigerator, heat from inside at 280 K is transferred to ...

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  15. The inside and outside temperatures of a refrigerator are 273 K and 30...

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  16. The temperature of a refrigerator is kept at7^@C to keep the food arti...

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  17. A refrigerator abstracts 1600 calories of heat from the ice trays. The...

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  18. A carnot engine has an efficiency of 20%. The energy is supplied to th...

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  19. For a carnot engine the source and the sink temperatures are 527^@C an...

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  20. A carnot engine operates between 227^@C and 127^@C. It absorbs 80 kilo...

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