zero order
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Re: zero order
it means that the rate at which a reaction occurs is not dependent on the concentration of reactant.
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Re: zero order
For a zero-order reaction, the rate of the reaction is independent of the concentration of the reactants.
The differential rate law for zero-order is rate = (-1/a)(d[A]/dt) = k[A]^0 = k, so you can see how the rate does not depend on [A].
This can happen when a catalyst or enzyme is required in the reaction, and that catalyst or enzyme has become saturated, so increasing the concentration of the reactants does not increase the rate of the reaction.
The differential rate law for zero-order is rate = (-1/a)(d[A]/dt) = k[A]^0 = k, so you can see how the rate does not depend on [A].
This can happen when a catalyst or enzyme is required in the reaction, and that catalyst or enzyme has become saturated, so increasing the concentration of the reactants does not increase the rate of the reaction.
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Re: zero order
It just means that the rate of reaction is not dependent on that element which is zero order. As in d[A]/dt=-k[A]^0=-k, the rate is solely dependent on k.
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Re: zero order
For a zero order reaction, the rate of the reaction is not dependent on the concentration of the reactants but simply on k, which varies depending on the specific reaction occurring under a certain set of conditions.
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Re: zero order
Zero order means that the reaction rate does not depend on the concentration of the reactants
First order means that the reaction rate depends on the concentration of one reactant
Second order means that the reaction rate depends on the concentration of 2 reactants
First order means that the reaction rate depends on the concentration of one reactant
Second order means that the reaction rate depends on the concentration of 2 reactants
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Re: zero order
It means that the rate does not vary with the increase or decrease in the concentration of the reactants.
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Re: zero order
The concentration of a reactant that is zero order has no effect on the rate of its reaction. The concentration of this species can triple or halve but the rate of the reaction will stay constant. It is therefore not included in the rate law of that reaction.
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Re: zero order
From what I understand, it practically means that the rate of the reaction is not dependent. It does not depend on whether the rest of the reaction increases or decreases. As in d[A]/dt=-k[A]^0=-k, the rate is solely dependent on k. Hope that kinda clears things up.
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Re: zero order
it means that the rate of the reaction is not dependent of the concentration of the reactants. the rate depends on k
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Re: zero order
The concentration of the zero order reactants does not affect the rate of the overall reaction. Sometimes this is because the reactant in question is not directly involved in the rate-limiting step.
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Re: zero order
abby hyman wrote:Zero order means that the reaction rate does not depend on the concentration of the reactants
First order means that the reaction rate depends on the concentration of one reactant
Second order means that the reaction rate depends on the concentration of 2 reactants
This was very clear and helpful.Thank you!
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Re: zero order
For a zero order reaction, the rate is independent of the concentration of the reactant.
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Re: zero order
For a zero-order reaction, the rate of the reaction is independent of the concentration of the reactants.
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Re: zero order
Hello! For a zero-order reaction, the overall rate of the reaction is not dependent on the concentration of the reactants but rather it is dependent on k. However, depending on the set of conditions and type of reaction it varies.
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Re: zero order
A zero order reaction has a rate that is independent of the concentration of a reactant
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Re: zero order
I believe that in zero-order reactions you wouldn't see a pattern between the concentrations and the rates of the reaction. The simplest way I can explain it.
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Re: zero order
In a zero order reaction, the rate of reaction is not dependent on the concentrations of the reactant.
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Re: zero order
A zero order reaction means that the rate does not dependent on the concertation of the element.
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Re: zero order
Since a zero-order rate law will be k[A]^0, which is just k, that means that the rate does not depend on the concentration of the reactant(s).
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Re: zero order
Zero Order means the reaction isn't affected by the concentration. The equations that come with it are [A]=-kt+[A0], d[A]=-kdt, t(1/2)= [A0]/ (2k).
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Re: zero order
The rate of the reaction does not depend on the concentration of the reactants when considering a zero order reaction.
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Re: zero order
order of a reaction: with respect to one of the reactants, the order of a reaction is equal to the power to which the concentration of that reactant is raised in the rate equation.
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Re: zero order
it means that the rate of the reaction is not dependent on the the concentration of the reactants
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Re: zero order
The rate of the reaction is not dependent on the amount of reactant in the case of a zero-order. If you think about it, a zero-order rate is written as rate = k*[reactant]^0. Anything to the 0th power is automatically 1, so the rate simply becomes rate = k*1 = k.
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Re: zero order
zero order means that the kinetics of the reaction do not depend on the concentration of reactant or product
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Re: zero order
The reactants of a zero-order reaction do not affect how fast the reaction goes. In the rate law for this reaction, all reactants are put to the zeroeth power, so no matter what their concentration is, their contribution to the rate law will be multiplying the rate law by 1.
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Re: zero order
A zeroth-order reaction is one whose rate is independent of concentration; its differential rate law is rate = k. We refer to these reactions as zeroth order because we could also write their rate in a form such that the exponent of the reactant in the rate law is 0: rate=−Δ[A]Δt=k[reactant]0=k(1)=k.
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Re: zero order
For a zero order reaction, the rate of reaction is not dependent on the concentration of reactant.
Re: zero order
In a zero order reaction, the concentration of the reactants does not affect the reaction rate. It is only dependent on the k value. This is called a "zero order reaction" because anything to the power of zero is one.
Hope this helps!
Hope this helps!
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Re: zero order
For a zero order reaction, that means the integrated rate law is [A]=-kt+[A]o, where we can see that the rate of the reaction is only impacted by k, and is not affected at all by the concentrations of the reactants.
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Re: zero order
A zeroth-order reaction is one whose rate is independent of concentration; its differential rate law is rate = k. We refer to these reactions as zeroth order because we could also write their rate in a form such that the exponent of the reactant in the rate law is 0: rate=−Δ[A]Δt=k[reactant]0=k(1)=k.
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Re: zero order
Hi! A zero order reaction just means that the rate of the reaction is only dependent on the rate constant, k, and not on the concentration of the reactants.
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Re: zero order
A zero order reaction is a reaction in which the rate is independent of the reactant's concentration.
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Re: zero order
If a reaction is a zero-order reaction, the rate of the reaction is not dependent on the reactant concentration.
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Re: zero order
A zero-order reaction is when the rate of the reaction does not depend on the reactant's concentration.
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