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प्रश्न
The S.I. unit of specific latent heat is ______.
विकल्प
cal g-1
cal g-1 K-1
J kg-1
J kg -1 K-1
उत्तर
The S.I. unit of specific latent heat is J kg-1.
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संबंधित प्रश्न
1 g ice of 0℃ melts to form 1 g water at 0℃. State whether the latent heat is absorbed or given out by ice.
Which has more heat: 1 g ice at 0℃ or 1g water 0℃? Give reason.
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What is the name given to the energy absorbed during a phase change?
Name two factors on which the heat absorbed or given out by a body depends.
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Give one consequence of the high specific latent heat of fusion of ice.
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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.)
1 kg of water is contained in a 1.25 kW kettle. Assuming specific heat capacity of water = 4.2 J/g °C and specific latent heat of vaporization = 2260 J/g, calculate:
(i) the time taken for the temperature of water to rise from 25°C to its boiling point,
(ii) the mass of water which evaporates per minute from the boiling water.
The latent heat of vaporisation is a term referred for the conversion of gas into liquid.
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- State the temperatures at which the substance condenses.
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