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प्रश्न
Name the law on which the principle of mixtures is based
उत्तर
The principle of mixtures is based on the law of conservation of energy
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संबंधित प्रश्न
Calculate the amount of heat energy required to raise the temperature of 100 g of copper from 20°C to 70°C. specific heat capacity of copper = `390 J kg^-1 K^-1`.
A bucket contains 10 liters of water at 80°C. Cold water at 25°C is run from a tap into the bucket of hot water for 20 seconds and the temp. Of the water in the bucket falls to 50°C.
(a) Calculate the rate at which cold water came out of the tap.
(b) State an assumption made in the above calculation.
Explain briefly, how you would determine the specific heat capacity of a liquid?
A Bunsen burner raises the temperature of 500g of water from 10°C to 100°C in 5 minutes. What heat is supplied per second?
40g of ice at 0°C is used to bring down the temperature of a certain mass of water at 60°C to 10°C. Find the mass of water used.
[Specific heat capacity of water = 4200 J kg-1 °C-1]
[Specific latent heat of fusion of ice = 336 × 103 J kg-1]
If you apply equal amount of heat to a solid, liquid, and gas individually, which of the following will have more expansion?
A calorimeter is a device used to measure the ______.
With the help of a neat diagram, explain the working of a calorimeter.
