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प्रश्न
Why is water used as a coolant in radiators of a car?
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उत्तर
When water passes through a pipe surrounded by a hot part of the engine, heat energy is removed from those parts. Because water has high specific heat capacity, water in pipes may extract more heat from the environment without significantly raising its temperature. As a result, the car's radiator and generator are both filled with water.
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संबंधित प्रश्न
Define the term 'specific heat capacity' and state its unit.
What is the unit of heat capacity in CGS system?
What is heat? What is the S. I. unit of heat?
Why is specific heat capacity taken as a measure of thermal inertia?
The temperature of a lead piece of mass 400 g rises from 20°C to 50°C when 1560 J of heat is supplied to it. Calculate Specific heat capacity of lead.
On supplying 100 µC of charge to a conductor, its potential rises by 5 V then capacity of the conductor is ______.
To study energy exchange between hot and cold objects, the system of both objects is isolated from the environment by keeping them inside ______.
A geyser heats water flowing at a rate of 2.0 kg per minute from 30°C to 70°C. If the geyser operates on a gas burner, the rate of combustion of fuel will be ______ g min-1.
[Heat of combustion = 8 × 103 Jg-1 Specific heat of water = 4.2 Jg-1°C-1]
Give one example where high specific heat capacity of water is used as heat reservoir.
A 0.2 kg metal at 150°C is placed in a copper calorimeter (water equivalent 0.025 kg) with 150 cm³ water at 27°C. Final temperature is 40°C. Find the specific heat of the metal.
