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A refrigerator works between 0^@C and 27...

A refrigerator works between `0^@C` and `27^@C`. If heat is to be removed from the refrigerated space at t/rate of 50 kcal/minute, the power of the motor of the refrigerator should be

A

0.346 kW

B

3.46 kW

C

0.173 kW

D

1.73 kW

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CHETANA PUBLICATION-Thermodynamics-EXERCISE
  1. Two Carnot engines A and B are operated in series. A receives heat at ...

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  2. A refrigerator has a coefficient of performance 9. If the surrounding ...

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  3. A refrigerator works between 0^@C and 27^@C. If heat is to be removed ...

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  4. A gas in a closed container is heated with 10 J of energy , causing t...

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  5. Which of the following is an example of the first law of thermodynamic...

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  6. Efficiency of a Carnot engine is large when

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  7. The second law of thermpdynamics deals with transfer of

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  8. During refrigration cycle, heat is rejected by the refrigerant in the

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  9. Select and write correct alternative from the following alternatives: ...

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  10. State first law of thermodynamics.

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  11. Work done during expansion is positive. Explain.

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  12. State zeroth law of thermo dynamics? OR Give the characteristics of is...

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  13. Draw a neat labelled diagram to show the energy flow of heat engine.

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  14. State both the statements of second law of thermodynamics.

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  15. Mention the set of processesin a Carnot cycle.

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  16. Distinguish between Reversible and Irreversible process.

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  17. 5 mol of oxygen is heated at constant volume from 10^@C to 20^@C. Find...

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  18. An amount of heat of 100 cal is supplied to a gas. The work done by th...

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  19. An ideal gasin a cylinder is compressed adiabatically to one-third its...

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  20. Derive an expression for efficiency of Carnot cycle.

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