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प्रश्न
A piece of iron of mass 2.0 kg has a heat capacity of 966 J K-1. Find its specific heat capacity in S.I unit.
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उत्तर
Mass of iron m = 2.0 kg
Thermal Heat Capacity c' = 966 J/°C
Rise in temperature T = 15°C
We know that specific heat capacity is = `"heat capacity"/ "mass of substance"`
So specific heat capacity is = `966 / 2`
= 483 J kg-1 K-1
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संबंधित प्रश्न
Give one example where high specific heat capacity of water is used as heat reservoir ?
What is meant by specific heat capacity?
Water boils at 120 °C in a pressure cooker. Explain the reason.
Describe a method to determine the specific heat capacity of a solid (say, a piece of copper).
Derive an expression for finding out the specific heat capacity of a body (solid) from the readings of an experiment given below:
(i) Mass of empty calorimeter (with stirrer) = m1 gm
(ii) Mass of the metal piece = M gm
(iii) Mass of colorimeter and water = m2 gm
(iv) Initial temperature and water = t1°C
(v) Temperature of hot solid (metal piece) = t2 °C
(vi) Final temperature of the mixture = t°C
(vii) Specific heat of calorimeter = 0.4 J gm / °C
The specific heat capacity of water is 1 cal/g °C.
Two uniform brass rods A and B of length land 2l and radii 2r and r respectively are heated to the same temperature. The ratio of the increase in the volume ofB to that of A is ____________.
Match the following
| 1. | Specific heat capacity | a. | Dewar bottle |
| 2. | Calorimeter | b. | Lavoisier and Simon |
| 3. | Vacuum flask | c. | J Kg-1 K-1 |
| 4. | Ice – calorimeter | d. | Heat capacity |
A block of ice of mass 120 g at temperature 0°C is put in 300 gm of water at 25°C. The xg of ice melts as the temperature of the water reaches 0°C. The value of x is ______.
[Use: Specific heat capacity of water = 4200 Jkg-1K-1, Latent heat of ice = 3.5 × 105 Jkg-1]
