Meaning of Zero, First, and Second Order?

[Michelle Wang 4I]

What exactly does it mean if a reaction is zero, first, or second order?

[Ethan Yi 1K]

the order of a reaction depends on how the concentrations of reactants affect the rate of the reaction. if the reactant concentration does not impact the rate, it is zero order (rate = k). if there is a linear relationship, where the rate and concentration have a direct correlation, it is first order (rate = k[A]). second order would be rate = k[A]^2

[Ariel Cheng 2I]

Remember you can also relate order numbers to individual reactants themselves or also the overall reaction order.

[lizettelopez1F]

To figure out the order, you would keep in mind that the graph you need to take into consideration is concentration over time.

[Subhani Diu 1F]

The orders correspond to the sum of the reactants' individual orders. It's helpful looking at the particular graphs to determine the overall reaction order.