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प्रश्न
Write the approximate value of specific latent heat of ice.
उत्तर
The specific latent heat of ice is, 336000 J kg-1.
APPEARS IN
संबंधित प्रश्न
State two factors upon which the rate of emission of thermions depends.
- 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).
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 ______.
Calculate the total amount of heat energy required to convert 100 g of ice at −10℃ completely into water at 100℃. Specific heat capacity of ice = 2.1 J g-1 K-1, specific heat capacity of water = 4.2 J g-1K-1, specific latent heat of ice = 336 J g-1.
Answer the following:
Explain the role of latent heat in the change of state of a substance.
What happens to the heat supplied to a substance when the heat supplied causes no change in the temperature of the substance?
Give one consequence of the high specific latent heat of fusion of ice.
Why water get cooled in a ‘Surahi’ in hot season?
Define the term ‘specific latent heat of fusion’ of a substance.
State two advantages of the high specific latent heat capacity of steam, which is about 226 × 104 J/kg?
State the main precautions to be taken in finding the latent heat of steam.
What observation you will record and how will you determine the specific latent heat of fusion of ice?
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 : _______
Find the odd one out and give its explanation.
During reheating, ice is converted to water at a temperature of 0 °C.
Write scientific reason.
Use a pressure cooker to cook food in cold air.
Observe the following graph and answer the following questions:
- What does the graph represent?
- What does the line AB represent?
- What does the line BC represent?
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.
