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Consider a mixture of 1 moles of helium ...

Consider a mixture of 1 moles of helium gas and 4 moles of oxygen gas (molecules taken to be rigid) as an ideal gas. Its CP/CV value will be:

A

`27//35`

B

`24//23`

C

`33//23`

D

`40//27`

Text Solution

Verified by Experts

The correct Answer is:
C
`C_(P)/(C_v) mix = (n_1C_(p_1) + n_2C_(p2))/(n_1C_(V_1) +n_2C_(V_2))`

`C_p/C_V mix = ((1xx (5R)/(2)) + 4 ((7R)/(2)))/(1 xx (3R)/(2) +4((5R)/2))`
`C_p/C_v = 33/23`
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