MP Board · Class 11 · Physics · Kinetic TheoryThe ratio of specific heats $\gamma = Cp / Cv$ for a monoatomic ideal gas is:
Step-by-Step Solution
For a monoatomic gas, degrees of freedom $f = 3$. $C_v = \frac{3}{2} R$, $C_p = \frac{5}{2} R$. Thus, $\gamma = \frac{C_p}{C_v} = \frac{5}{3} \approx 1.67$.
Detailed Options Breakdown
Option : $7/5$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Kinetic Theory.
Option 1: $5/3$ (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: $4/3$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Kinetic Theory.
Option 3: $9/7$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Kinetic Theory.
💡 Study Guide: This question tests core syllabus concepts from Kinetic Theory. For formulas, key summaries, and mock exam reference guides, read the full Kinetic Theory Revision Notes.