WBJEE · Physics · Kinetic Theory of Gases
What will be the molar specific heat at constant volume of an ideal gas consisting of rigid diatomic molecules?
- A \(\frac{3}{2} R\)
- B \(\frac{5}{2} R\)
- C \(R\)
- D \(3 R\)
Answer & Solution
Correct Answer
(B) \(\frac{5}{2} R\)
Step-by-step Solution
Detailed explanation
For a gas at temperature \(T\), the internal energy, \[ U=\frac{f}{2} \mu R T \] where, \(f=\) degree of freedom \(\Rightarrow\) Change in energy, \(\Delta U=\frac{f}{2} \mu R \Delta T\) Also, as we know for any gas heat supplied at constant volume…
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