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Water in lakes and ponds do not freeze a...

Water in lakes and ponds do not freeze at once in cold countries. Give a reason in support of your answer.

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ICSE-CALORIMETRY-EXERCISE-11(B)
  1. It is difficult to cook vegetables on hills and mountains. Explain the...

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  2. Complete the following sentences : When ice melts, its volume........

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  3. Complete the following sentences : Decrease in pressure over ice ....

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  4. Complete the following sentences : Increase in pressure .............

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  5. Complete the following sentences : A pressure cooker is based on t...

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  6. Complete the following sentences : The boiling point of water is d...

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  7. Complete the following sentences : Water can be made to boil at 11...

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  8. What do you understand by the term latent heat ?

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  9. The specific latent heat of fusion of ice is 336 xx 10^3 J/kg. What do...

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  10. Write the approximate value of specific latent heat of ice.

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  11. The specific latent heat of fusion of ice is 336 J g^(-1). Explain the...

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  12. 1 g ice at 0^@C melts to form 1 g water at 0^@C. State whether the lat...

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  13. Which has more heat : 1 g of ice at 0^@C or 1 g of water at 0^@C ? Giv...

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  14. (a) Which requires more heat : 1 g ice at 0^@C or 1 g water at 0^@C to...

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  15. Explain, why-one feels ice cream at 0^(@)C colder than water at 0^(@)C...

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  16. Why does a bottle of soft drink cool faster when surrounded by ice cub...

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  17. It is generally cold after a hail-storm than during and before the hai...

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  18. It is observed that the temperature of the surroundings starts falling...

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  19. Water in lakes and ponds do not freeze at once in cold countries. Give...

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  20. Explain the following: (a) The surrounding become pleasantly warm ...

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