Determine ÄH for the following reaction,
N₂(g) + 3 H₂(g) = 2 NH3(g)
given the thermochemical equations below.
N₂(g) + O₂(g) = 2 NO(g) ÄH= +180.8 kJ
4 NH3(g) + 5 O₂(g) = 4 NO(g) + 6 H₂O(g) ÄH = -906.2 kJ
2 H₂(g) + O₂(g) = 2 H₂O(g) ÄH = -483.6 kJ
1) -1209.0 kJ
2) -1189.0 kJ
3) -756.5 kJ
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