JEE Mains · Physics · STD 11 - 12 . kinetic theory of gases
Consider a mixture of \(n\) moles of helium gas and \(2 n\) moles of oxygen gas (molecules taken to be rigid) as an ideal gas. Its \(\frac{\mathrm{C}_{\mathrm{P}}}{\mathrm{C}_{\mathrm{V}}}\) value will be
- A \(\frac{67}{45}\)
- B \(\frac{19}{13}\)
- C \(\frac{23}{15}\)
- D \(\frac{40}{27}\)
Answer & Solution
Correct Answer
(B) \(\frac{19}{13}\)
Step-by-step Solution
Detailed explanation
\(\frac{C_{P}}{C_{V}} \operatorname{mix}=\frac{n_{1} C_{P_{1}}+n_{2} C_{P_{2}}}{n_{1} C_{V_{1}}+n_{2} C_{V_{2}}}\)…
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