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Zero Order Reaction

Posted: Mon Mar 11, 2019 12:14 pm
by Emma Scholes 1L
What is an example of a zero order reaction?

Re: Zero Order Reaction

Posted: Mon Mar 11, 2019 12:42 pm
by Cole Elsner 2J
An example I like to think of is having to reactants, A and B, and a few different experiments changing the concentrations of each, and analyzing the change in the rate. When A is increased, let's say that the reaction shows no change. You do the same for B, still no change. I think of zero order as any increase or decrease of the reactant with zero order, there is ZERO change to rate.

Re: Zero Order Reaction

Posted: Mon Mar 11, 2019 12:54 pm
by mcredi
For example 10mg of a drug maybe eliminated per hour, this rate of elimination is constant and is independent of the total drug concentration in the plasma

Re: Zero Order Reaction

Posted: Mon Mar 11, 2019 9:43 pm
by caseygilles 1E
a zero order reaction is one whose rate is independent of the concentration. An example is when nitrous oxide decomposes to nitrogen and oxygen. In the presence of a catalyst, platinum, we see that changing concentration of N2O has no effect on the rate of decomposition so we know the rate only depends on the rate constant, k. More precisely, as long as there is sufficient n2o to react with platinum the rate is not determined by concentration of n2o.

Re: Zero Order Reaction

Posted: Wed Mar 13, 2019 2:28 pm
by Brian Chang 2H
The Haber process is an example of a 0th order rxn.

Re: Zero Order Reaction

Posted: Wed Mar 13, 2019 2:31 pm
by Kyither Min 2K
I think this was mentioned in class but zero order reactions occur when the concenctration is super high that there is barely a difference in concentration respect to time.