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Three perfect gases at absolute temperat...

Three perfect gases at absolute temperature `T_1,T_2, and T_3` are mixed. The masses of molecules are `n_1,n_2 and n_3` respectively. Assuming to loss of energy, the final temperature of the mixture is:

A

`(n_(1)T_(1)+n_(2)T_(2)+n_(3)T_(3))/(n_(1)+n_(2)+n_(3))`

B

`(n_(1)T_(1)^(2)+n_(2)T_(2)^(2)+n_(3)T_(3)^(3))/(n_(1)T_(1)+n_(2)T_(2)+n_(3)T_(3))`

C

`(n_(1)T_(1)^(2)+n_(2)T_(2)^(2)+n_(3)T_(3)^(2))/(n_(1)T_(1)+n_(2)T_(2)+n_(3)T_(3))`

D

`((T_(1)+T_(2)+T_(3)))/(3)`

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