2 mol He is mixed with 2 gm of H(2). Th...

`2 mol` `He` is mixed with `2 gm ` of `H_(2)`. The molar heat capacity at constant pressure for the mixture is

A

`17/6 R`

B

`11/6 R`

C

4R

D

`(3R)/(2)`

Verified by Experts

The correct Answer is:

A

`C_p = (n_1 C_(p1) + n_2 C_(p2) )/(n_1 + n_2)`
` = (2 xx 5//2 + 1 xx 7//2R)/(3) = 17/6 R`.

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