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One mole of an ideal monoatomic gas is m...

One mole of an ideal monoatomic gas is mixed with one mole of an ideal diatomic gas. The molar specific heat of the mixture at constant volume is (in Calories )

A

3 cal

B

4 cal

C

8 cal

D

9 cal

Text Solution

Verified by Experts

The correct Answer is:
B
`C_(v) = (3)/(2) R` (For monoatomic gas)
`C_(v) = (5)/(2) R` (For diatomic gas)
Thus, for an equimolar mixture
`C_(v) = (((3)/(2) R + (5)/(2)R))/(2) = 2R = 4 cal`
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