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A carnot engine takes in 1000 K cal of h...

A carnot engine takes in `1000 K cal` of heat from a reservoir at `627^(@)C` and exhausts heat to sink at `27^(@)C`. What is its efficiency? What is useful work done//cycle by the engine.

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The correct Answer is:
`66.67% ; 2.8xx10^(6)J`
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PRADEEP-THERMODYNAMICS-Problems for practice
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  9. Efficiency of a carnot engine is 0.4, when temp. of sink is 300K. What...

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  10. A perfect carnot engine has source temp. 227^(@)C and sink temp. 127^(...

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  11. An ideal engine operates by taking in steam from a boiler at 327^(@)C ...

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  12. Two carnot engines A and B are operated in series. The first one A rec...

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  15. In a refrigerator, heat from inside at 270K is transferred to a room a...

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  16. Assuming that a domestic refrigerator can be regarded as a reversivle ...

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  17. In a cold storage, ice melts at the rate of 2 kg//h when the external ...

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  19. A refrigerator freezes 5 kg of water at 0^(@)C into ice at 0^(@)C in a...

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