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प्रश्न
Write two advantages of high specific heat capacity of water.
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उत्तर
(i) Water is used as an effective coolant in radiator of a car.
(ii) Hot water bottles are used for fomentation.
संबंधित प्रश्न
Calculate the mass of ice needed to cool 150 g of water contained in a calorimeter of mass 50 g at 32 °C such that the final temperature is 5 °C. Specific heat capacity of calorimeter = 0.4 J g-1 °C-1, Specific heat capacity of water = 4.2 J g-1°C-1, latent heat capacity of ice = 330 J g-1.
State three ways to minimize the global warming.
Define heat capacity.
State the condition for the flow of heat energy from one body to another.
Some heat is provided to a body to raise its temperature by 25°C. What will be the corresponding rise in temperature of the body as shown on the Kelvin scale?
Describe a method to determine the specific heat capacity of a solid (say, a piece of copper).
A substance is in the form of a solid at 0°C. The amount of heat added to this substance and the temperature of the substance are plotted on the following graph:
If the specific heat capacity of the solid substance is 500 J/kg °G, find from the graph, the mass of the substance.
The heat capacity of the vessel of mass 100 kg is 8000 J/°K. Find its specific heat capacity.
To study energy exchange between hot and cold objects, the system of both objects is isolated from the environment by keeping them inside ______.
When two kilocalories of heat are supplied to a system, the internal energy of the system increases by 5030 J and the work done by the gas against the external pressure is 3350 J. Calculate J, the mechanical equivalent of heat.
