Question

Use the standard reaction enthalpies given below to determine deltaHrxn for the following reaction
2NO + O₂ → 2NO₂
Given N₂ + O₂ → 2NO H=183
1/2N₂ + O₂ → NO₂ H=33
a) -150 kJ
b) -117 kJ
c) -333 kJ
d) 115 kJ