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18/09/2020 4:35 pm
Topic starter
Match the Cp/Cv ratio for ideal gases with different type of molecules:
Molecule Type Cp/Cv
(A) Monoatomic - (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
(1) (A) – (III), (B) – (IV), (C) – (II), (D) – (I)
(2) (A) – (IV), (B) – (I), (C) – (II), (D) – (III)
(3) (A) – (IV), (B) – (II), (C) – (I), (D) – (III)
(4) (A) – (II), (B) – (III), (C) – (I), (D) – (IV)
1 Answer
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18/09/2020 4:38 pm
(2) (A) – (IV), (B) – (I), (C) – (II), (D) – (III)
Explanation:
γ = 1 + 2/f
For A ; f = 3 ; γ = 1 + 2/3 = 5/3
For B ; f = 5 ; γ = 1 + 2/5 = 7/5
For C ; f = 7 ; γ = 1 + 2/7 = 9/7
For D ; f = 6 ; γ = 1 + 2/6 = 4/3