order of the reaction can be negative... an example for the same is the formation of oxygen from ozone. the order with respect to oxygen is negative... but i need to know an experiment which proves the same. in case you are wondering the order with respect to oxygen is -1.
2006-11-06 02:50:47 · 3 answers · asked by sue 2 in Science & Mathematics ➔ Chemistry
I was confused by your question at first, but I think I understand if you're currently studying kinetics.
The rate of a reaction can be expressed in a rate law such as:
Rate = k[concentration]^n.
In that equation, k is the rate constant and n is order of the reaction. A second order rate law would have the form:
Rate = k[ ]^2.
Although they're less talked about in general chemistry, a reaction order could be negative. (This just would mean you'd have a negative value for n.) For example, a rate law where n = -1 with respect to oxygen would look like:
Rate = k [O2]^-1 = k / [O2]
To try to verify this experimentally, you would need a method for monitoring the concentration of the oxygen during the reaction (or a different method for measuring it indirectly). If you had a set of data points for how the concentration of O2 changes with time, you could make a graph with time on the x axis and the concentration of O2 SQUARED on the y axis. If this graph was of a straight line, that would be experimental evidence that the order of the rate law with respect to O2 is indeed -1.
2006-11-06 03:27:37 · answer #1 · answered by ihatedecaf 3 · 1⤊ 0⤋
Define Reaction Order
2016-11-04 04:16:05 · answer #2 · answered by Anonymous · 0⤊ 0⤋
If that is the order of the reaction, that means that as the concentration of oxygen increases, the rate of formation of ozone decreases.
Reaction order has to do with the effect of the concentration of the reactant on the rate of the reaction. If a reaction has a positive order, the rate of the reaction increases as the concentration of the reactant increases. A negative order would mean a decreasing rate with increasing concentration of the reactant.
Experimentally, you determine reaction orders by measuring the rate of the reaction with different concentrations of the reactant.
Hope this helps.
2006-11-06 03:10:45 · answer #3 · answered by hcbiochem 7 · 4⤊ 0⤋