Question

The specific heat of a metal is $\mathrm{0.16.}$ Its approximate atomic weight would be

• A. 40
• B. 16
• C. 32
• D. 64

Answer 1

Answer: (A)

According to Dulong Petit's law:

Atomic weight $\times$ specific heat $=6.4$

Atomic $=\frac{6.4}{0.16}=40$