determine n
Moderators: Chem_Mod, Chem_Admin
-
- Posts: 31
- Joined: Fri Feb 16, 2018 3:01 am
-
- Posts: 37
- Joined: Tue Feb 13, 2018 3:00 am
-
- Posts: 100
- Joined: Thu Jul 11, 2019 12:17 am
-
- Posts: 101
- Joined: Sat Sep 28, 2019 12:16 am
Re: determine n
It's essentially the order of the reaction that is determined by the concentration of reactants.
-
- Posts: 104
- Joined: Thu Jul 25, 2019 12:16 am
Re: determine n
n represents the order of the reactant, which in turn gives insight into the mechanism of the reaction.
Re: determine n
Alison Trinh 1E wrote:n represents the order of the reactant, which in turn gives insight into the mechanism of the reaction.
how do you know what the order is
-
- Posts: 212
- Joined: Wed Sep 18, 2019 12:18 am
Re: determine n
For the electrochemistry section, n represents the number of electrons transferred. You can find this by balancing the half reactions.
-
- Posts: 112
- Joined: Wed Sep 18, 2019 12:19 am
-
- Posts: 56
- Joined: Fri Aug 30, 2019 12:16 am
- Been upvoted: 1 time
Re: determine n
n is the number of electrons transferred. In order to calculate n, you must write the half reactions for reduction and oxidation, balance them, and then see the number of electrons transferred.
Re: determine n
In kinetics, n refers to the order of the reactants in a reaction. If n=1, this tells us the rate is directly proportional to the concentration of [reactant].
-
- Posts: 102
- Joined: Wed Sep 18, 2019 12:18 am
Re: determine n
remember when given a table with the concentration of reactants and rates of different reactions, the order can be found by setting up a ratio of the concentration from (ex.) (Conc. Experiment 1 / Conc. Experiment 2)^n = (Rate Experiment 1 / Rate Experiment 2). Remember that the variables that represent order are applied to the concentration, not the experimental rates! Hope this helps.
Re: determine n
805097738 wrote:Alison Trinh 1E wrote:n represents the order of the reactant, which in turn gives insight into the mechanism of the reaction.
how do you know what the order is
The order refers to the sum of all the exponents of the concentrations in the rate law. For example, if the rate law was rate=kr[A]^2[B]^3, the overall order would be 5. However, it is important to keep in mind that the order of each individual species only refers to that species’ specific coefficient and is therefore different (unless it’s the only reactant affecting the rate).
-
- Posts: 110
- Joined: Sat Aug 17, 2019 12:15 am
Re: determine n
For kinetics, n is the exponent that a concentration is raised to in a rate law, the sum of these exponents is the overall order of the reaction. In the homework problems you can find n based off of given experimental data that shows the variation of rates with concentrations of reactants.
-
- Posts: 50
- Joined: Fri Aug 09, 2019 12:16 am
Re: determine n
If you are referring to kinetics when you say "these reactions", then n is just the order of the reaction. The order of the reaction can give you a basic understanding of how the reaction works (reaction mechanism).
-
- Posts: 49
- Joined: Sat Sep 07, 2019 12:18 am
Return to “Method of Initial Rates (To Determine n and k)”
Who is online
Users browsing this forum: No registered users and 2 guests