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Coco12
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Homework Statement
When gaseous nitrogen and hydrogen are converted to gaseous ammonia, then delta G equals: -16.64Kj/mol
3h2+ n2=2nh3
Using the s values , calculate the delta h for the formation of ammonia
Homework Equations
Delta s for:
H2:130.6
N2:191.5
Nh3:192.5
T= 298
The Attempt at a Solution
Delta h= delta G + T delta s
The ans is 46.2 kj/mol for NH3
I understand how to get the delta s values
However how did they get 46.2
In the ans, they multiplied delta g by 2
And then after adding it to the T delta s
They got 92.3 Kj and divided it by 2 mols to get 46.2
My question is why are they multiplying delta G by 2?