Question

Equal quantity of heat is supplied to two substances $A$ and $B$. Substance $A$ shows a greater rise in temperature. What can be concluded about the heat capacities of the two bodies?

• A. A = B
• B. A > B
• C. A < B
• D. A = B = 0

Answer 1

The correct option is C

A < B

Heat transfer, (H) from a body to another body is governed by the heat transfer formula,
$H=m\times c\times \Delta T$
where $m$ is the mass, $c$ is the specific heat capacity and $\Delta T$ is the change of temperature.
Now according to above equation,
A substance with smaller value for specific heat capacity, $c$ shows a greater or a higher rise in temperature, $\Delta T$ as compared to one with greater value of specific heat capacity, $c$ for same amount heat transferred, $H$.
Hence, the specific heat capacity of body $A$ is smaller than the specific heat capacity of body $B$.