Question

What is the value of $\frac{R}{C_{P}}$for diatomic gas

• A. 3/4
• B. 3/5
• C. 2/7
• D. 5/7

Answer 1

Answer: (C)

2/7

Answer 2

$\frac{R}{C_{P}} = \frac{R}{7/2R} = \frac{2}{7}$ $\left( \because C_{P} = \frac{7}{2}R \right)$