- #1

- 272

- 0

## 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?