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प्रश्न
Give one example where high specific heat capacity of water is used as heat reservoir.
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उत्तर
For long-term heat loss without the water in the bottle becoming cold, hot water bottles with a high specific heat capacity are ideal for fomentation.
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संबंधित प्रश्न
What do you understand by the following statements:
The specific heat capacity of lead is 130 Jkg-1K-1.
Heat supplied to a solid change it into liquid. What is this change in the phase called?
What do you mean by the following statement?
The heat capacity of a body is 50 JK-1?
Write the expression for the heat energy Q received by the substance when m kg of substance of specific heat capacity c Jkg-1 k-1 is heated through Δt° C.
Find the time taken by a 500 W heater to raise the temperature of 50 kg of material of specific heat capacity 960 J kg-1K-1, from 18°C to 38° C. Assume that all the heat energy supplied by the heater is given to the material.
How does green house effect help in keeping the temperature of earth’s surface suitable for living of human beings?
A substance is heated at a constant rate from a low temperature to a high temperature. A graph of temperature against time is shown in the figure. Which part or parts of the graph correspond(s) to the substance existing in two states?
Will the value of specific heat’capacity and specific latent heat of a substance change if the scale is °F instead of °C?
How much heat energy is released when 5 g of water at 20° C changes to ice at 0° C?
[Specific heat capacity of water = 4.2 J g-1 ° C-1 Specific latent heat of fusion of ice = 336 J g-1]
We would like to make a vessel whose volume does not change with temperature (take a hint from the problem above). We can use brass and iron `(β_(vbrass) = (6 xx 10^(–5))/K and β_(viron) = (3.55 xx 10^(–5))/K)` to create a volume of 100 cc. How do you think you can achieve this.
