Question

For a solid with a small expansion coefficient,
(a) Cp − Cv = R
(b) Cp = Cv
(c) Cp is slightly greater than Cv
(d) Cp is slightly less than Cv

Answer 1

Option (c) is correct.

Explanation:

• Work done in a phase will also be small, for a solid with a small expansion coefficient.
• Thus the specific heat is slightly dependent on the process. $C_p$ is thus slightly larger than $C_v$.

Specific heat: -

1. Specific heat is the volume of heat per unit mass needed to raise the temperature by one degree Celsius.
2. The relation between heat change and temperature is usually shown in the form in which c is total heat.

Answer 2

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option C is correct

hope it help