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प्रश्न
What do you understand by the following statements:
The specific heat capacity of lead is 130 Jkg-1K-1.
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उत्तर
Specific heat capacity is the amount of heat energy required to raise the temperature of unit mass of a substance through 1°C or 1 K. Thus, 130 Jkg-1K-1 of heat energy required to raise the temperature of unit mass of lead through 1 K.
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संबंधित प्रश्न
In an experiment to determine the specific heat capacity of a solid following operations were
made:
Mass of calorimeter + stirrer = x kg
Mass of water = y kg
Initial temperature of water t1℃
Mass of solid = z kg
Temperature of solid = t2 ℃
Temperature of mixture = t ℃
Specific heat capacity of calorimeter and water are c1 and c2 respectively. Express the specific
heat capacity c of the solid in terms of the above data.
State three ways to minimize the global warming.
Is it possible to condense the water formed, back to ice by adding ice at 0°C. Explain with reason.
Calculate the amount of heat released when 5.0 g of water at 20°C is changed into ice at 0°C.
(Specific heat capacity of water = 4.2 J/g°C
Specific latent heat of fusion of ice = 336 J/g)
Answer the following question.
Why do we generally consider two specific heats of a gas?
The heat capacity of the vessel of mass 100 kg is 8000 J/°K. Find its specific heat capacity.
Derive Meyer’s relation for an ideal gas.
Two metals A and B have specific heat capacities in the ratio 2:3. If they are supplied same amount of heat then
If the mass ratio of metal A and metal B is 3:5 then calculate the ratio in which their temperatures rise.
To study energy exchange between hot and cold objects, the system of both objects is isolated from the environment by keeping them inside ______.
