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प्रश्न
During reheating, ice is converted to water at a temperature of 0 °C.
पर्याय
Right
Wrong
उत्तर
During reheating, ice is converted to water at a temperature of 0 °C- Right
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संबंधित प्रश्न
State two factors upon which the rate of emission of thermions depends.
What is the Greenhouse effect?
The S.I. unit of specific latent heat is ______.
What is the name given to the energy absorbed during a phase change?
Explain why water is used in hot water bottles for fomentation and also as a universal coolant.
What happens to the heat supplied to a substance when the heat supplied causes no change in the temperature of the substance?
Define the term ‘specific latent heat of fusion’ of a substance.
Explain, why no tracks are left on the ice during ice skating?
State the main precautions to be taken in finding the latent heat of steam.
Calculate the total amount of heat required to convert 100g ice at 0°C to steam at 100°C.
(Specific latent heat of fusion of ice = 336 J/g, specific latent heat of vaporization of steam = 2260 J/g, specific heat capacity of water = 4.2 J/g°C).
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
Find the odd one out and give its explanation.
Write the name.
Products obtained when sugar is heated.
The latent heat of vaporisation is a term referred for the conversion of gas into liquid.
Write scientific reason.
The bottom of some steel utensils used for cooking is copper.
Define specific latent heat capacity
Who introduced the term latent heat?
Calculate the amount of heat required to convert 200g of ice at 0°C into the water at 0°C Specific latent heat of fusion of ice = 336 Jg-1
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.
