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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_(1)C_(p_(1)) + n_(2)C_(p_(2)))/(n_(1)Cv_(1) + n_(2)Cv_(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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