General Meaning of "Zero Order" Reactions

[Layal Suboh 1I]

What does it mean for a reaction to have zero order?

[Emma Scholes 1L]

In a zero order reaction, the rate of the reaction does not depend on the concentration of the reactant.

[Danielle_Gallandt3I]

This typically occurs when the reactant concentration is already very high, so adding more reactant doesn't change the rate

[Yvonne Du]

This typically occurs when the reactant concentration is already very high, so adding more reactant doesn't change the rate

Thank you for clarifying!

[Jessica Tsui 1H]

Zero-order reactions can also occur when there is a catalyst, so the reaction would depend on the catalyst instead of the concentration of reactant.

[Celine Cheng 1H]

If the reaction rate is dependent on a catalyst, does that mean the substrate has to be in high concentration as well?

[Saman Andalib 1H]

This means that the reaction rate does not depend on the particular amount of a specific reactant (that is 0 order).

[haleyervin7]

If the reaction rate is dependent on a catalyst, does that mean the substrate has to be in high concentration as well?

Dr. Lavelle said to assume the catalyst/enzyme is saturated with substrate (meaning it is already working at maximum capacity) so adding substrate doesn't change the rate.