Question

When the specific heat of a metallic element is 0.214 cal the atomic mass will be closest to which one of the following?

• A. 1
• B. 12
• C. 30
• D. 66

Answer 1

Answer: (C)

30

Since, $\text{specific heat}\times \text{atomic weight = 6.4 = constant}$

Hence, $0.214\times M=6.4$

$\Rightarrow M\approx 30$ g/mol

Hence, the answer is option C.