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प्रश्न
Name the law on which the principle of mixture is based.
उत्तर
This principle is based on law of conservation of energy.
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संबंधित प्रश्न
1300 J of heat energy is supplied to raise the temperature of 6.5 kg of lead from 20° C to 40°C. Calculate the specific heat capacity of lead.
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.
Fill in the following blank using suitable word:
Evaporation causes ..........
Fill in the following blank using suitable word:
The amount of heat required to change the state of a physical substance without any change of temperature is called .......... of the substance.
Which has more heat: 1 g of ice at 0°C or 1 g of water at 0°C? Give reason.
Which contains more heat: 1 G water at 100°C or 1 g steam at 100°C? Give reason.
Explain briefly, how you would determine the specific heat capacity of a liquid?
Find the final temperature when a mass of 80g of water at 100°C is mixed with a mass of 40g of water at 25°C.
