The radiator of an engine is cooled by water because:

If the specific heat of a substance is infinite,it means that:

What is the heat capacity of a substance?

Whose specific heat is high? Sand or water?

Which of the following is the unit of specific heat?

The specific heat $C$ of a solid at low temperature shows temperature dependence according to the relation $C = D T^{3}$, where $D$ is a constant and $T$ is the temperature in Kelvin. $A$ piece of this solid of mass $m \ kg$ is taken and its temperature is raised from $20 \ K$ to $30 \ K$. The amount of heat required in the process in energy units is