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Assuming that a domestic refrigerator ca...

Assuming that a domestic refrigerator can be regarded as a reversivle engine working between the temperature of melting ice and that of the atmosphere `(170^(@)C)`, calculate the energy which muct be supplied to freeze one kilogram of water already at `0^(@)C`.

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The correct Answer is:
`2.092xx10^(4) J`
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SL ARORA-THERMODYNAMICS-Problems for self practice
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  2. Refrigerator A works between -10^@C and 27^@C, while refrigerator B wo...

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

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

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  5. A refrigerator has to transfer an average of 263J of heat per second f...

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

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  7. Ice in cold storage melts at the rate of 3 kg per hour. The temperatur...

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  8. The temperature gradient in a rod of 0.5 m length is 80^(@)C//m. It th...

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  9. Calculate the rate of loss of heat through a glass window of area 1000...

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  10. Calculate the difference in temperature between two sides of an iron p...

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  11. The length, a rod of aluminium is 1.0 m and its area of cross-section ...

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  12. A flat-bottom kettle placed on a stove is being used to boil water and...

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  13. An iron boiler is 10 mm thick and has a heating area 2m^(2). The two s...

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  14. One end of a 0.25 m long metal bar is in steam and the other is in con...

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  15. A layer of ice 0.15 m thick has formed on the surface of a deep pond. ...

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  16. Water is boiled in a rectangular steel tank of thickness 2 cm by a con...

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  17. Estimate the rate at which ice would melt in a wooden box 20 mm thick ...

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  18. Steam at 100^(@)C is passed through a tubeof radius 5 cm and length 3 ...

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  19. The outer face of a rectangular slab of equal thickness of iron and br...

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  20. The thermal conductivity of copper is four times that of brass. Two ro...

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