Nitric oxide, energy diagram

The energy diagram for the reaction of nitrogen and oxygen to form nitric oxide. This is an endothermic process. 

The molecular orbital energy-level diagram for nitric oxide (NO). The bond order is 2.5, or (8 - 3)/2. 

Prepare a molecular orbital energy level diagram for nitric oxide (NO) and predict the bond order of this molecule. On the basis of the molecular orbital diagram, what do you predict for the bond orders of NO+ and NO Which of these diatomic species would you expect to have the shortest bond length Why ... 

Molecular orbital theory then explains why NO is stable with respect to N and O atoms, and predicts that NO+ will form fairly easily. We have not explained why nitric oxide gas consists of NO molecules rather than N202 molecules, or why NO is unstable with respect to oxidation by oxygen to N02. To do this, we would have to consider orbital energy-level diagrams for N202 or N02 and 02 as well. 

Figure 6.3 The energy diagram for the reaction of nitrogen and oxygen to form nitric oxide. This is an endothermic process Heat [equal in magnitude to A(PE)] flows into the system from the surroundings.

Figure 1 Molecular orbital energy level diagram of nitric oxide.

Figure 2-1 presents a qualitative flow diagram for the manufacture of nitric acid by the ammonia-oxidation process. Figure 2-2 presents a quantitative flow diagram for the same process. With the information from these two figures, prepare a quantitative energy balance for the process and size the equipment in sufficient detail for a preliminary cost estimate. 

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