WHAT do these pictures have in common?
What do they have to do with this experiment?
Is NO really just all bad?
They all are generating or about to generate nitrogen oxides!
Certainly it is not unexpected to see toxic fumes generated
in the chem lab. After all thats what chemistry is noted for.
N2 + O2 ----> 2 NO
This combination is very unfavorable and even at high temperatures it occurs to less than 1%. If this were not so, we would not have any oxygen left in our atmosphere. ( You figure it out. The molar ratio of nitrogen to oxygen in air is about 4:1) And if your catalytic converter is working properly, much of this nitric oxide is converted back into nitrogen and oxygen. New Jersey's Motor Vehicle Inspection Stations see to this. Never-the-less, with so many cars running for so many hours, cars are a major source of NOx pollution.
But what is with the all-American hot dog? Is nothing sacred?
|And so what happens when the chewed up hotdog hits your stomach?
2 NO2- + HCl -------> NO + NO2 + H2O +Cl-
|The combination of nitrogen and oxygen to form nitric oxides takes place only when extra energy is added to air. The combustion temperature of a cars engine provides this extra energy. What do you think happens during a thunder storm when a lightning bolt zaps through the air?|
The VERDICT on NO
Nitric Oxide is a gas which
converts readily to Nitric Acid.
For the following reasons it is HARMFUL
Yet the following make it VALUABLE
© RWK 1997