MCQ
A polyatomic ideal gas has $24$ vibrational modes. What is the value of $\gamma$ ?
- ✓$1.03$
- B$1.30$
- C$1.37$
- D$10.3$
✓
Answer
Correct option: A.
$1.03$
a
Since each vibrational mode has 2 degrees of
Since each vibrational mode has 2 degrees of
freedom hence total vibrational degrees of
freedom $=48$
$f=3+3+48=54$
$\gamma=1+\frac{2}{ f }=\frac{28}{27}=1.03$
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