Question
The densities of two substances are in the ratio 1 : 2 and their specific heat in the ratio 2 : 3. Compare their thermal capacities if their volumes are in the ratio 3 : 4.
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Text solutionVerified
Given, ratio of densities, ; ratio specific heat, and ratio of volumes,
Thermal capacities are , and
Thus,
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Question 1
Four cubes of ice are taken out from a refrigerator and are put in 200 ml of a drink at .(a) Find the temperature of the drink when thermal equilibrium is attained in it.
(b) If the ice cubs do not do not melt completely, find the amount melted. Assume that no heat is lost to the outside of the capacity. Density of ice , density of the drink , specific heat capacity of the drink 4200 J/kg-K, latent heat of fusion of ice
Question 4
Explain why(a) Two bodies at different temperatures T and T if brought in thermal contact do not necessarily settle to the mean temperature (T +T)/2
(b) The coolant in a chemical or a nuclear plant (i.e. the liquid used to prevent the different parts of a plant from getting too hot) should have high specific heat
(c) Air pressure in a car tyre increases during driving
(d) The climate of a harbour town is more temperate than that of a town in a desert at the same latitude
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Question Text | The densities of two substances are in the ratio 1 : 2 and their specific heat in the ratio 2 : 3. Compare their thermal capacities if their volumes are in the ratio 3 : 4. |
Answer Type | Text solution:1 |
Upvotes | 150 |