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# The heat required to raise the temperature of a body by 1 K is called:A. specific heatB. thermal capacityC. water equivalent D. none of these

Last updated date: 23rd Jul 2024
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Hint: There are two different terms for the heat required to raise the temperature of a body by 1K and the heat required by the unit mass of a substance to raise the temperature by 1K. These terms differ in heat capacity and specific heat capacity. The heat is the energy that is supplied to raise the temperature.

$C=\dfrac{\Delta Q}{\Delta T}$ , where Q is the heat in joules and T is the temperature in Kelvin. The unit of measurement is Joule per Kelvin or J/K. The delta sign denotes the change in heat upon change in temperature, this because heat capacity is an extensive property and depends on the final and the initial states of the body.
The specific heat or specific heat capacity is different from thermal capacity. This is because specific heat capacity deals with the unit mass, so it is measured by dividing the heat capacity by the mass of the body as $c=\dfrac{C}{M}$, it may be defined as the heat required to raise the temperature of unit mass of the body by 1 K. It is an intensive property.