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A Carnot engine works between 200^(@)C a...

A Carnot engine works between `200^(@)C` and `0^(@)C` and another carnot engine works between `0^(@)C` and `-200^(@)C` . In both caes the working substance absorbes 4 kcal of heat from the source. The efficiency of first engine will be

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The correct Answer is:
0.577, 71036 J, 12307 .7 J
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SL ARORA-THERMODYNAMICS-Problems for self practice
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  11. In a petrol engine, the rate of production of heat due to combustion o...

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  12. In a petrol engine,the rate of production of heat due to the combustio...

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

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  14. Refrigerator A works between -10^@C and 27^@C, while refrigerator B wo...

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

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  16. A refrigerator whose coefficient of performance eta' is 4, extracts he...

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