A gas mixture consists of 2 moles of oxy...

A gas mixture consists of 2 moles of oxygen and 4 moles of argon at temperature T. Neglecting all vibrational modes, the total internal energy of the system is

`4 RT`

`15 RT`

`9 RT`

`11 RT`

Text Solution

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The correct Answer is:

`U = n(f/2) RT = 2 xx 5/2RT+4xx3/2RT=11RT`.

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