Given the standard enthalpies of formation for the following substances, determine the reaction enthalpy for the following reaction.
2N2H4(g)
2NO2(g)
3N2(g)
4H2O(g) Hrxn = ? kJ
Substance H
in kJ/mol
N2H4(g) +95.4
NO2(g) +33.1
H2O(g) -241.8
Correct Answer:
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