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Why is ice at 0^(@)C more effective on c...

Why is ice at `0^(@)C` more effective on cooling than water at `0^(@)C` Justify.

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`T(K)=t^(@)C+273`
`rArr T(K)=2T(K)+273`
`rArr T(K)=-273`
`rArr T(K)=-273`
The required temperature is -273 K.
Bus since temperature below 0 K not is not possible.
There is no temperature satisfying the condition.
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CENGAGE PHYSICS-HEAT AND TEMPERATURE -MANDATORY EXERCISE (Exercise Set II)
  1. Why is ice at 0^(@)C more effective on cooling than water at 0^(@)C Ju...

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  2. Which causes more severe burns, boiling water or steam? Explain.

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  3. When 1 kg of water and mercury are given the same amount of heat, whic...

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  4. Specific heat capacity of an object depends on

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  5. Boiling point of water

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  6. Boiling point of water in a pressure cooker is

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  7. 10 g of water at 20^(@)C is mixed with 20 g of water at 10^(@)C The re...

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  8. The value of a is numerically equal to the percentage change in length...

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  9. How much heat is required to rise the temperature of 20 g of mercury f...

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  10. Calculate the amount of ice that can be melted when 1 kg of steam at 1...

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  11. The length of a rod increases from 50 cm to 50.12 cm, when its tempera...

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  12. A hot iron ball of mass 200 g is cooled from 373 K to 303 K. If the he...

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  13. Two bodies A and B having same initial tempera ture are supplied with ...

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  14. The specific heat capacities of Aluminium and Iron are 900 J kg^(-1) K...

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  15. Water can be used as an efficient coolant. Explain.

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  16. Sea breeze maintains a moderate climate near sea shors. Explain.

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  17. Why is the bulb of a thermometer made small?

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  18. In a building with two floors, the ground floor is cooler than the fir...

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  19. The principle of calorimetry is basically

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  20. Under what condition, is the principle of calorimetry not valid?

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