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30 g of water at 300^(@)C is in a beaker...

30 g of water at `300^(@)C` is in a beaker . Which of the following when added to water , will have greater cooling effect ?( specific heat of copper =`0.1 cal//g^(@)C`)

A

100 gms of water at `10^(@)C`

B

15 gms of water at `0^(@)C`

C

3 gms of ice at `0^(@)C`

D

18 gms of copper at `0^(@)C`

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-THERMAL PROPERTIES OF MATTER-EXERCISE-3
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  3. 30 g of water at 300^(@)C is in a beaker . Which of the following when...

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  4. 300 g of water at 25^(@)C is added to 100 g of ice at 0^(@)C. The fina...

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  5. 10 gm of ice at -10^(@)C is mixed with 100 gm of water at 50^(@)C cont...

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  6. The fraction of ice that melts by mixing equal masses of ice at -10^(@...

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  9. The power of a refrigerator which freezes 100 gm of water at 10^(@)C i...

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  10. 100g of water is supercooled to -10^(@)C. At this point, due to some d...

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  15. Two cylindrical rods of the same material have the same temperature di...

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  16. Two identical rods of a metal are welded in series then conducts certa...

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  17. Two rods of same length and material transfer a given amount of heat i...

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