Determine the enthalpy of formation (in kJ/mol) for NO2 (g), given the following reaction: 4 NH3...

Question

Question

Determine the enthalpy of formation (in kJ/mol) for NO2 (g), given the following reaction:

4 NH3 (g) + 7 O2 (g)  4 NO2 (g) + 6 H2O(l)

rxnH° = –1400 kJ, fH°(NH3, g) = –46 kJ/mol, fH°(H2O,l) –286 kJ/mol.

(1) +733

(2) +33

(3) +794

(4) –28

(5) –59

science chemistry

Answer 1

Answer #1

Option (2) is the correct answer i.e. +33kJ/mol

Answer 2

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