Without a Catalyst:
The reaction produces nitrogen gas (N₂) and water vapor (H₂O).
4 NH₃(g) + 3 O₂(g) → 2 N₂(g) + 6 H₂O(g)
With a Catalyst (e.g., platinum):
The reaction produces nitrogen monoxide (NO) and water vapor (H₂O).
4 NH₃(g) + 5 O₂(g) → 4 NO(g) + 6 H₂O(g)
Explanation:
* In both reactions, ammonia and oxygen are the reactants.
* The products differ based on the presence of a catalyst.
* The coefficients in front of each chemical formula balance the number of atoms of each element on both sides of the equation.
Important Note:
The reaction of ammonia with oxygen is an exothermic reaction, meaning it releases heat. In the presence of a catalyst, the reaction proceeds at a much faster rate.