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Calculat average molar heat capacity at ...

Calculat average molar heat capacity at constant volume of gaseous mixture contained 2 mole of each of two ideal gases `A (C_(v,m)=(3)/(2)R)` and `B (C_(v,m)=(5)/(2)R)` :

A

`R`

B

`2R`

C

`3R`

D

`8R`

Text Solution

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The correct Answer is:
B
Average `C_(v,m)=(n_(1)C_(v,m_(1))+n_(2)C_(v,m_(2)))/(n_(1)+n_(2))=(2xx(3)/(2)R+2xx(5)/(2)R)/(2+2)=2R`
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