quem question

[ds2012tg]

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what does the half-life of a zero order reaction depend on? thanks!

 

[FeralisExtremum]

rate constant and initial concentration

 

[ds2012tg]

i thought that was for second order... :/

 

[FeralisExtremum]

That is also true for second order reactions as well (but not for first order)

 

[Dr.9999]

A zero-order reaction is a reaction that proceeds at a rate that is independent of reactant concentration. In other words, increasing or decreasing the concentration of reactants will not speed up or slow down the reaction, respectively. This means that the rate of the reaction is equal to the rate constant, k, of that reaction.

 

[ReaverOpS]

A zero-order reaction is a reaction that proceeds at a rate that is independent of reactant concentration. In other words, increasing or decreasing the concentration of reactants will not speed up or slow down the reaction, respectively. This means that the rate of the reaction is equal to the rate constant, k, of that reaction.

Seconded. 👍

 

[FeralisExtremum]

That is certainly true for the rate, but not of the half-life, which is what the OP is asking about. This is the given formula for the half-life of zero order reaction:

This site states the same: http://chemwiki.ucdavis.edu/Physica...ip_Between_Half-life_and_Zero-order_Reactions

"Notice that, for zero-order reactions, the half-life depends on the initial concentration of reactant and the rate constant."