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(there's a problem in this question that I had to find. The answer was given to me... the final answer should could out to -75.2 kJ/mol. Just need to find out how I get to that answer, the work)

The chemical equation is…

N2 (g) + 3H2 (g)—> 2NH3 (g)

Using the S^0 values, and calculate the (▲H^0f) for the formation of ammonia.


Substance_______(S^0)____________2(H^0f)
N2 ____________191.5_____________0.0
3H2____________3(130.6)=391.8_____0.0
2NH3___________2(192.5)=385______2(-46.2)= - 92.38

2007-05-10 10:25:42 · 2 answers · asked by JaMES B 1 in Science & Mathematics Chemistry

2 answers

The usual problem that students have when using entropies and enthalpies in the same equation is that they forget to divide all the entropy values by 1,000.

2007-05-13 06:09:09 · answer #1 · answered by Gervald F 7 · 0 0

It ought to be A nitrogen fixation. Duh it additionally has the information nitrogen in it. Binary fission is how micro organism reproduce, by using dividing in 2. Conjugation is whilst 2 organisms substitute DNA by using a tube of cytoplasm. And attachment only sounds incorrect.

2016-12-17 09:27:24 · answer #2 · answered by ? 4 · 0 0

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