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प्रश्न
Give one consequence of the high specific latent heat of fusion of ice.
उत्तर
Due to high specific latent heat of fusion of ice, snow on the mountains does not melt all at once but changes into water slowely as it gets heat from the sun.
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संबंधित प्रश्न
What do you understand by the term latent heat?
Write the approximate value of specific latent heat of ice.
The S.I. unit of specific latent heat is ______.
A refrigerator converts 100g of water at 20℃ to ice at – 10℃ in 73.5 min. Calculate the average rate of heat extraction in watt. The specific heat capacity of water is 4.2 J kg-1 K-1, specific latent heat of ice is 336 J g-1 and the specific heat capacity of ice is 2.1 J kg-1 K-1.
What is meant by latent heat? How will the state of matter transform if latent heat is given off?
Define the following terms:
(i) Latent heat,
(ii) Latent heat of fusion of ice.
Explain the meaning of the term latent heat. State its S. I. unit.
Define the term ‘specific latent heat of fusion’ of a substance.
Why do we feel much comfortable when we sit under a moving fan especially when our body is sweating?
What do you understand by the ‘latent heat of vaporization’ of a substance?
Steam at 100°C is passed over 1000 g of ice at 0°C. After some time, 600 g of ice at 0°C is left and 450 g of water at 0°C is formed. Calculate the specific latent heat of vaporization of steam (Given: specific heat capacity of water = 4200 J/kg°C, specific latent heat of fusion of ice = 336,000 J/kg.)
If there is no Heat loss to the surroundings, the heat released by the condensation of m1 g of steam at 100°C into water at 100°C can be used to convert m2 g of ice at 0°C into water at 0°C.
(i) Find:
(a) The heat lost by steam in terms of m1
(b) The heat gained by ice in terms of m2
(ii) Form a heat equation find the ratio of m2 : m1
Specific latent heat of vaporization of steam = 2268 kJ/kg
Specific latent heat of fusion of ice = 336 kJ/kg
Specific heat capacity of water = 4200 J/kg°C
When ice is converted into water : constant temperature : : before the water evaporates : _______
Write the name.
Products obtained when sugar is heated.
During reheating, ice is converted to water at a temperature of 0 °C.
1 kg of dry air at a temperature of 40 °C can hold a maximum of 49 g of water vapour.
Write scientific reason.
Even if boiling water is constantly heated, its temperature does not rise.
Write scientific reason.
Use a pressure cooker to cook food in cold air.
Specific latent heat L = ______.
Give some practical applications of specific latent heat of ice.
