Orders

[Timmy Nguyen Dis 1I]

How do we know which order the reaction is?

[asannajust_1J]

the total order of the reaction is the sum of the exponential coefficients. This can be determined based on graphs, a given rate law, or an integrated rate law.

[jisulee1C]

the order can also be determined by the given rate constant and the units or from a table with given concentrations and rates

[Brianna Becerra 1B]

A first-order reaction means that there is one reactant or molecule present in the rate law. A second-order rate law either has two of the same reactant (rate law would be squared) or two different ones (they would be multiplied by each other). Two examples of second-order reactions are rate=k[CO2]^2 or rate=k[CO2][H2O].

[Mariah]

the total order of the reaction is the sum of the exponential coefficients. This can be determined based on graphs, a given rate law, or an integrated rate law.

Would the graphs be given to us?

[Michael Nguyen 1E]

I believe that if we need to determine the order of a reaction based on graphs, then they will most likely provided the graphs that we need.

[Noe BM 1J]

How would we know the order of the reaction if we are given an integrated rate law?

the total order of the reaction is the sum of the exponential coefficients. This can be determined based on graphs, a given rate law, or an integrated rate law.

[Noe BM 1J]

As far as I know, we never include products in the rate law, correct?

A first-order reaction means that there is one reactant or molecule present in the rate law. A second-order rate law either has two of the same reactant (rate law would be squared) or two different ones (they would be multiplied by each other). Two examples of second-order reactions are rate=k[CO2]^2 or rate=k[CO2][H2O].

[Oduwole 1E]

How do we know which order the reaction is?

You can use the given rate constant and the units or from a table with given concentrations and rates.