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प्रश्न
Fill in the following blank using suitable word:
Two bodies in contact are said to be in thermal equilibrium, if they have same ...........
उत्तर
Two bodies in contact are said to be in thermal equilibrium, if they have same temperature.
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संबंधित प्रश्न
Differentiate between heat and temperature.
Find the result of mixing 10 g of ice at - 10℃ with 10 g of water at 10℃. Specific heat capacity of ice = 2.1 J kg-1 K-1, Specific latent heat of ice = 336 J g-1 and specific heat capacity of water = 4.2 J kg-1 K-1.
A piece of copper of mass 1 kg is dropped into 2 kg of water at 15°C. If the final temperature of the mixture is 40°C, calculate the intial temperature of copper.
Give scientific reasons for the following:
It is much easier to skate on rough ice than on glass.
1 kg of molten lead at its melting point of 327°C is dropped into 1 kg of water at 20°C. Assuming no loss of heat, calculate the final temp. of water. (Sp. heat of lead = 130 J/kg°C, latent heat of lead = 27000 J/kg and Sp. heat of water = 4200 J/kg°C).
In an experiment. 17 g of ice is used to bring down the temp. of 40 g of water from 34°C to its freezing point. The sp. heat capacity of water is 4.25 J/g°C. Calculate sp. latent heat of ice.
Fill in the following blank using suitable word:
Evaporation causes ..........
What energy change would you Expect to take place in the molecules of a substance when it undergoes:
(i) a change in its temperature?
(ii) a change in itsstate without any change in its temperature?
Why does atmospheric temperature fall after hail storm?
