Order of the reactant (n)

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Hailey Boehm 2H
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Order of the reactant (n)

Postby Hailey Boehm 2H » Sun Mar 03, 2019 4:54 pm

What exactly is n? and how do we determine it?

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Re: Order of the reactant (n)

Postby whitney_2C » Sun Mar 03, 2019 5:04 pm

The order of a reactant tells us to what degree a reactant's concentration affects the rate of reaction. We determine it by using the formula below and a set of experimental data.
Screen Shot 2019-03-03 at 5.04.25 PM.png

Joanna Pham - 2D
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Re: Order of the reactant (n)

Postby Joanna Pham - 2D » Mon Mar 04, 2019 7:52 am

It’s essentially the coefficient in front of the reactant or product and it’s raised to the concentration of that reactant or product. For example, if given 2NO2 -> 2NO + O2, and asked to find the rate of consumption of NO2, it’ll be rate = k[NO2]^2.

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Re: Order of the reactant (n)

Postby mcredi » Mon Mar 04, 2019 9:19 am

The rate law or rate equation for a chemical reaction is an equation that links the reaction rate with the concentrations or pressures of the reactants and constant parameters. Basically it is a number that relates the rate of a chemical reaction with the concentrations of the reacting substances and the sum of all the exponents of the terms expressing concentrations of the molecules or atoms determining the rate of the reaction

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Re: Order of the reactant (n)

Postby Philipp_V_Dis1K » Wed Mar 06, 2019 9:37 am

If you change the concentration of reactant and the amount of product changes by the same amount, n is 1. If product changes by a higher value than your reactant, take the value the reactant was changed by and see to what power it must be raised by to get the same value as the product

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