JEE Mains · Physics · STD 11 - 12 . kinetic theory of gases
Energy of \(10\) non rigid diatomic molecules at temperature \(\mathrm{T}\) is _______.
- A \(\frac{7}{2} \mathrm{RT}\)
- B \(70 \mathrm{~K}_{\mathrm{B}} \mathrm{T}\)
- C \(35 \mathrm{RT}\)
- D \(35 \mathrm{~K}_{\mathrm{B}} \mathrm{T}\)
Answer & Solution
Correct Answer
(D) \(35 \mathrm{~K}_{\mathrm{B}} \mathrm{T}\)
Step-by-step Solution
Detailed explanation
\(\text { Degree of freedom }(f)=5+2(3 N-5)\) \( f=5+2(3 \times 2-1)=7\) \(\text { energy of one molecule }=\frac{f}{2} K_B T\) energy of 10 molecules…
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