Question

The Specific Heat of Metal Is 0.16. Its Approximate atomic weight would be :

• A. 16
• B. 20
• C. 40
• D. 64

Answer 1

The correct option is C

40

• A correct answer is an option (c) 40
• According to Dulong’s Petit law =Atomic weight x specific heat= 6.4
• Therefore, the atomic weight = 6.4/specific heat
• Atomic weight = $\frac{6.4}{0.16}$
• Atomic weight = 40
• Therefore, the approximate atomic weight of metal is 40.