Q. Dulong and Petit’s law is valid only for

A) Metals
B) Non-metals
C) Gaseous elements
D) Solid elements
Explanation

(d)
According to Dulong and Petit’s law
At. mass of element$\times$ specific heat (in cal/g)=6.4(app.)
This law is applicable only to solid elements excepts Be, B, C and Si.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.