Calculate the enthalpy change if 5.00 mol N₂ (g) reacts with O₂ (g) to make NO, a toxic air pollutant and important industrial compound, using the following thermochemical equation:

Strategy

We will use the same approach as used in previous stoichiometry problems, except that this time a relationship exists between the number of moles of reactant and the quantity of energy consumed: 1 mol N₂ reacts and 181.8 kJ energy is consumed.

Transcribed Image Text:

N₂(g) + O₂(g) → 2NO(g) ΔΗ = +181.8 kJ