ExamBro
ExamBro
AP EAMCET · PHYSICS · Kinetic Theory of Gases

The ratio of the molar specific heat capacities of monatomic and diatomic gases at constant pressure is

  1. A \(1: 7\)
  2. B \(5: 7\)
  3. C \(3: 7\)
  4. D \(2: 7\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(5: 7\)

Step-by-step Solution

Detailed explanation

For monoatomic gas, \(\mathrm{f}=3\) \(\therefore\left(\mathrm{C}_{\mathrm{p}}\right)_1=\left(1+\frac{\mathrm{f}}{2}\right) \mathrm{R}=\left(1+\frac{3}{2}\right) \dot{\mathrm{R}}=\frac{5 \mathrm{R}}{2}\) For diatomic gas, \(\mathrm{f}=5\)…