Question

When there is no change of state in a process, which of the following is not required to calculate the heat lost or gained in the process?

• A. Weight
• B. Specific heat
• C. Relative density
• D. Temperature change

Answer 1

The correct option is C

Relative density

When state of the body does not change, heat is given by
Q = mc$\Delta \theta$, where,
m is the mass of the substance,
c is the specific heat, and
$\Delta \theta$ is the temperature change in the process.
Since weight is dependent on mass, it also plays a role in calculation of heat. However, relative density does not have any significant role in this process.