lesliemendez413 lesliemendez413 20-10-2022 Chemistry Answered Based on the reactions: 1. 2NO2 (g)N2O4 (g) H1 = - 57.2 kJ 2. 2NO(g) + O2 (g)2NO2 (g) H2 = -114.1 kJ Use Hess's law to calculate H for: 2NO(g) + O2 (g)N2O4 (g)