Advertisements
Advertisements
प्रश्न
Define thermal capacity.
Advertisements
उत्तर
- Heat capacity or thermal capacity is defined as the amount of heat energy required to raise the temperature of a body by 1°C. It is denoted by ‘C’.
- C = Q/t, where C’ is the heat capacity, ‘Q’ is the quantity of heat required and ‘f’ is rise in temperature.
- SI unit of heat capacity is J/K. It is also expressed in cal/°C, kcal/°C or J/°C.
APPEARS IN
संबंधित प्रश्न
Name three factors on which heat energy absorbed by a body depends and state how does it depend on them.
Same amount of heat is supplied to two liquid A and B. The liquid A shows a greater rise in temperature. What can you say about the heat capacity of A as compared to that of B?
The S.I. unit of heat capacity is ______.
Metals like copper and aluminum are good conductors of heat and electricity.
The amount of heat required to raise the temperature to 1°C is called ______.
What is the other name for heat capacity?
Compare heat capacity and specific heat capacity.
The graph given below shows heat energy supplied against change in temperature when no energy is lost to the surroundings. The slope of this graph will give:
- Calculate the heat capacity of a copper vessel of mass 200 g if the specific heat capacity of copper is 410 J kg-1 K-1.
- How much heat energy will be required to increase the temperature of the vessel in part (a) from 25°C to 35°C?
A copper block has a mass of 0.2 kg and a specific heat capacity of 290 J/(kg·°C). What is its thermal capacity?
