🤓 Based on our data, we think this question is relevant for Professor Waddell's class at UC.
We’re being asked to determine the enthalpy change (ΔHrxn) for the chemical reaction:
2 NOCl (g) → N2 (g) + O2 (g) + Cl2 (g)
We can use Hess’s Law to determine the enthalpy change of the overall reaction from the given reactions:
1. 1/2 N2 (g) + 1/2 O2 (g) → NO (g) ΔH = 90.3KJ
2. NO (g) + 1/2 Cl2 (g) → NOCl (g) ΔH = - 38.6 KJ
We now need to find a combination of reactions that when added up, gives us the overall reaction.
Calculate ΔHrxn for the following reaction
2 NOCl (g) → N2 (g) + 02 (g) + Cl2 (g)
Given the following set of reactions;
1/2 N2 (g) + 1/2 02 (g) → NO (g) ΔH= 90.3KJ
NO (g) + 1/2 Cl2 (g) → NOCl (g) ΔH = - 38.6 KJ