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Consider a mixture of 3 moles of helium ...

Consider a mixture of 3 moles of helium gas and 2 moles of oxygen gas (molecules taken to be rigid) as an ideal gas. Its `C_P//C_V` value will be:

A

`67//45`

B

`16//13`

C

`29//19`

D

`40//27`

Text Solution

Verified by Experts

The correct Answer is:
C
`(C_P)/(C_V) "mix" = (n_1 C_(P_1) + n_2 C_(P_2))/(n_1 C_(V_1) + n_2C_(V_2))`
`(C_P)/(C_V) "mix" =(3xx ((5R)/(2)) + 2 ((7R)/(2)))/(3xx (3R)/(2) + 2((5R)/(2)) ) , (C_P)/(C_V) = (29)/(19)`
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