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A Carnot engine, whose efficiency is 40%...

A Carnot engine, whose efficiency is `40%`, takes in heat from a source maintained at a temperature of 500K. It is desired to have an engine of efficiency `60%`. Then, the intake temperature for the same exhaust (sink) temperature must be:

A

Efficiency of Carnot engine cannot be made larger than 50%

B

1200 K

C

750 K

D

600 K

Text Solution

Verified by Experts

The correct Answer is:
C
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MOTION-Thermodynamics-EXERCISE - 3 SECTION b
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  2. Which of the following is incorrect regarding the first law of thermod...

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  3. The temperature -entropy diagram of a reversible engine cycle is given...

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  4. A system goes from A and B via two processes. I and II as shown in fig...

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  5. The work of 146 kJ is performed in order to compress one kilo mole of ...

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  6. A Carnot engine, having an efficiency of eta= 1/10 as heat engine, is ...

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  7. When a system is taken from state i to state f along the path iaf, it ...

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  8. Assume the gas to be ideal, the work done on the gas in taking it from...

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  9. Two moles of helium gas are taken over the cycle ABCDA, as shown in th...

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  10. Two moles of helium gas are taken over the cycle ABCDA, as shown in th...

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  11. A diatomic ideal gas is used in a Carnot engine as the working substan...

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  12. A thermally insulated vessel contains an ideal gas of molecular mass M...

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  13. A carnot engine operating between temperatures T(1) and T(2) has effic...

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  14. Helium gas goes through a cycle ABCDA (consisting of two isochoric and...

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  15. A Carnot engine, whose efficiency is 40%, takes in heat from a source ...

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  16. The above p-v diagram represents the thermodynamic cycle of an engine,...

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  17. One mole of a diatomic ideal gas undergoes a cyclic process ABC as sho...

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  18. A solid body of constant heat capacity 1J//^@C is being heated by keep...

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  19. n' moles of an ideal gas undergoes a process AtoB as shown in the figu...

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  20. Two moles of an ideal monatomic gas occupies a volume V at 27 °C. The ...

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