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प्रश्न
The substances like water which have ........... Heat capacity warm up more slowly than substances like iron which have .......... heat capacity.
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उत्तर
The substances like water which have high heat capacity warm up more slowly than substances like iron which have low heat capacity.
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संबंधित प्रश्न
Define heat capacity and state its SI unit.
A solid of mass 50 g at 150 °C is placed in 100 g of water at 11 °C when the final temperature recorded is 20 °C. Find the specific heat capacity of the solid. (specific heat capacity of water = 4.2 J/g °C)
Indian style of cooling drinking water is to keep it in a pitcher having porous walls. Water comes to the outer surface very slowly and evaporates. Most of energy needed for evaporation is taken from the water itself and the water is cooled down. Assume that a pitcher contains 10 kg of water and 0.2 g of water comes out per second. Assuming no backward heat transfer from the atmosphere to the water, calculate the time in which the temperature decrease by 5°C. Specific heat capacity of water = 4200 J kg−1 °C−1 and latent heat of vaporization of water = 2.27 × 106 J kg−1.
Does the specific heat capacity of a substance depend upon its mass and rise in temperature only?
Is it possible to condense the water formed, back to ice by adding ice at 0°C. Explain with reason.
A. hot solid of mass 60 g at 100°C is placed in 150 g of water at 20° C. The final steady temperature recorded is 25°C. Calculate the specific heat capacity of the solid. [Specific heat capacity of water = 4200 J kg-1 °C-1]
A vessel of negligible heat*capacity contains 40g of ice in it at 0°C, 8g of steam at 100°C is passed into the ice to melt it. Find the final temperature of the contents of the vessel.
(Specific latent heat of vaporization of steam = 2268 J/g, specific latent heat of fusion of ice = 336 J/f and specific heat capacity of water = 4.2 J/g°C)
To study energy exchange between hot and cold objects, the system of both objects is isolated from the environment by keeping them inside ______.
The difference between the two molar specific heats of gas is 9000 J/kg K. If the ratio of the two specific heats is 1.5, calculate the two molar specific heats.
Specific heat capacity of a substance X is 1900 Jkg-1°C-1 means ______.
