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प्रश्न
How fog is formed?
उत्तर
When water vapour condenses around microscopic solid particles such as dust, fog is formed.
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संबंधित प्रश्न
Which has more heat: 1 g ice at 0℃ or 1g water 0℃? Give reason.
The specific latent heat of fusion of water is ______.
During transformation of liquid phase to solid phase, the latent heat is ______.
Answer the following:
Explain the role of latent heat in the change of state of a substance.
When a liquid is getting converted into solid, the latent heat is ………………………………
Water expands on reducing its temperature below ______°C.
Define the following terms:
(i) Specific latent heat,
(ii) Specific latent heat of fusion.
What is the name given to the energy absorbed during a phase change?
Define specific latent heat of vaporization of a substance.
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?
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.
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.)
Find the odd one out and give its explanation.
Match the columns.
| Column A | Column B |
| 1) Absolute humidity | a) J or cal |
| 2) Latent heat | b) J/kg °C |
| 3) Specific heat capacity | c) kJ/kg |
| 4) Heat | d) no unit |
| e) kg/m3 |
Specific latent heat L = ______.
The amount of heat energy required to melt a given mass of a substance at its melting point without any rise in its temperature is called as the ______.
