3) Determine the value of the enthalpy change, AHıxn, for the following reaction using the information below.
N2O(g) + NO2(g) → 3 NO(g)
2 NO(g) → N2(g) + O2(g)
2 N2O(g) → 2 N2(g) + O2(g)
NO(g) + 1/2O2(g) → NO2(g)
AH=-181 kJ/mol
AH=-163 kJ/mol
AH = -57 kJ/mol

Aspartame (C₁₄H₁₈N₂O₅) is a solid used as an artificial sweetener. its combustion produces carbon dioxide gas, liquid water, and nitrogen gas

C₁₄H₁₈N₂O₅ + 16O₂> 14CO₂ + 9H₂O + N₂.

As it can be seen from the equation, that the coefficient of nitrogen gas in the balanced equation for the reaction is 1.

So the answer here is 1 only that is coefficient of nitrogen gas in the balanced equation for the reaction is 1.