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प्रश्न
During reheating, ice is converted to water at a temperature of 0 °C.
विकल्प
Right
Wrong
उत्तर
During reheating, ice is converted to water at a temperature of 0 °C- Right
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संबंधित प्रश्न
What do you understand by the term latent heat?
Which has more heat: 1 g ice at 0℃ or 1g water 0℃? Give reason.
The specific latent heat of fusion of water is ______.
A thermally insulated pot has 150 g ice at temperature 0°C. How much steam of 100°C has to be mixed to it, so that water of temperature 50°C will be obtained? (Given : latent heat of melting of ice = 80 cal/g, latent heat of vaporization of water = 540 cal/g, specific heat of water = 1 cal/g °C)
Water expands on reducing its temperature below ______°C.
Explain the following temperature Vs. time graph:
What do you mean by the statement?
'The specific latent heat capacity of fusion of ice is 336 J per g'?
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.
Name two factors on which the heat absorbed or given out by a body depends.
Give one consequence of the high specific latent heat of fusion of ice.
Why water get cooled in a ‘Surahi’ in hot season?
Why do we feel much comfortable when we sit under a moving fan especially when our body is sweating?
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.)
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.
Give some practical applications of specific latent heat of ice.
600 g of copper at 50°C is mixed with lOOOg water at 20°C. Find the final temperature of the mixture. The specific heat capacity of copper is 0.4 Jg-1°C-1 and that of water is 4.2 Jg-1°C-1
