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प्रश्न
- Which requires more heat: 1 g ice at 0℃ or 1 g water at 0℃ to raise its temperature to 10℃?
- Explain your answer in part (a).
उत्तर
- 1 g ice at 0°C requires more heat because ice would require additional heat energy equal to the latent heat of melting.
- 1 g ice at 0°C first absorbs 336 J heat to convert into 1 g water at 0°C.
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संबंधित प्रश्न
Explain the following:
The heat supplied to a substance during it change of state, does not cause any rise in its temperature.
The specific latent heat of fusion of water is ______.
During transformation of liquid phase to solid phase, the latent heat is ______.
When a liquid is getting converted into solid, the latent heat is ………………………………
Water expands on reducing its temperature below ______°C.
What is the name given to the energy absorbed during a phase change?
Define specific latent heat of vaporization of a substance.
Explain the meaning of the term latent heat. State its S. I. unit.
What happens to the heat supplied to a substance when the heat supplied causes no change in the temperature of the substance?
What do you understand by the ‘latent heat of vaporization’ of a substance?
When ice is converted into water : constant temperature : : before the water evaporates : _______
Specific latent heat of vaporisation : J/kg : : specific heat : _______
Find the odd one out and give its explanation.
How fog is formed?
Write the name.
The phase in which solid substances are converted into liquid.
20 g of ice at 0°C absorbs 10,920 J of heat energy to melt and change to water at 50°C. Calculate the specific latent heat of fusion of ice. Specific heat capacity of water is 4200 J kg-1 K-1.
