QJEEM20Phdaf7: JEE Main 2020 Physics - Class 11 JEEM20Phdaf7 Solution: Match the C P C V ratio for ideal gases with different type of…

Question

Verified Solution • 2025–26 Session moderate

Match the

\frac{C_{P}}{C_{V}}

ratio for ideal gases with different type of molecules :

Molecule Type	C_P/C_V
(A) Monatomic	(I) 7/5
(B) Diatomic rigid molecules	(II) 9/7
(C) Diatomic non-rigid molecules	(III) 4/3
(D) Triatomic rigid molecules	(IV) 5/3

Accepted Answer

γ = C_{p} / C_{v}

γ_{A} = 1 + \frac{2}{3} = 5 / 3

γ_{B} = 1 + \frac{2}{5} = 7 / 5

γ_{C} = 1 + \frac{2}{7} = 9 / 7

γ_{D} = 1 + \frac{2}{6} = 4 / 3

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