Specific Heat
Specific Heat
Specific Heat:
The amount of heat required to raise a particular mass of a substance through a certain temperature depends on its specific heat capacity.The specific heat of a substance is the amount of heat that produces a unit temperature increase in the unit mass of that substance, that is, if the temperature of one gram mass of the substance is increased by 1 degree Celsius, the heat given in this process is called. The specific heat of the substance.
The specific heat capacity or specific heat of a substance is defined as the amount of heat required to raise the temperature of 1 kg of the substance through 1 °C.
Heat Capacity
Heat capacity is defined as the quantity of heat required to raise its temperature by 1°C.
Heat Capacity = Specific Heat X Mass
The calorie (cal) is the amount of heat required to raise the temperature of 1 g of water through 1°C
1 cal= 4.18 J
Quantity of heat (Q)= specific heat(s) X mass (m) X change in temperature (t).
Q= s x m x t
Where mass is in kg , s is in J/kg °C and t is in °C, The quantity of heat Q is in Joules (J)
Which of the following are correct ? (a) Specific heat is defined as the amount of heat required to raise the temperature of 1 kg of the substance through 1 °C. (b) Heat capacity is defined as the quantity of heat required to raise its temperature by 1°C. | |||
| Right Option : C | |||
| View Explanation | |||
________________________ of a substance is defined as the amount of heat required to raise the temperature of 1 kg of the substance through 1 °C. | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following are correct ? (a) The specific heat of a substance is defined as the amount of heat required to raise the temperature of 1 kg of the substance through 1 °C. (b) Heat capacity is defined as the quantity of heat required to raise its temperature by 1°C. (c) Heat Capacity = Specific Heat X Mass . | |||
| Right Option : D | |||
| View Explanation | |||
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