`5`n , n and `5`n moles of a monoatomic , diatomic and non-linear polyatomic gases (which do not react chemically with each other ) are mixed at room

Monjur Alahi

`5`n , n and `5`n moles of a monoatomic , diatomic and non-linear polyatomic gases (which do not react chemically with each other ) are mixed at room temperature . The equivalent degree of freedom for the mixture is :-
A. `(25)/(7)`
B. `(48)/(11)`
C. `(52)/(11)`
D. `(50)/(11)`


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Correct Answer - D
`f_(eq) = (f_(1)n_(1) + f_(2)n_(2) + f_(3)n_(3))/(n_(1) + n_(2)+ n_(3)) = ((5n) (3)(n)(5)+(5n)(6))/(5n + n+ 5n) = (50)/(11)`

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