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S^@ of N2, H2 and NH3 respectively are 1...

`S^@` of `N_2, H_2` and `NH_3` respectively are `190, 130 ` & 111 J/K/mol, then `DeltaS_("sys")` for formation of `8.5 g NH_3` is [in J/K]

A

`-179`

B

`–358`

C

`+179`

D

`-89.5`

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The correct Answer is:
D
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