First Order Reactions  [ENDORSED]


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William Lan 2l
Posts: 73
Joined: Fri Sep 29, 2017 7:07 am

First Order Reactions

Postby William Lan 2l » Fri Mar 02, 2018 7:06 pm

When a reaction is first order, does it mean that it's faster or slower than a second order reaction?

Eli Aminpour 2K
Posts: 50
Joined: Fri Sep 29, 2017 7:04 am

Re: First Order Reactions

Postby Eli Aminpour 2K » Fri Mar 02, 2018 7:11 pm

It depends on the reaction and the amount of concentration available. Its too general to say all of one is faster than another

Vincent Tse 1K
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Joined: Fri Sep 29, 2017 7:05 am
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Re: First Order Reactions  [ENDORSED]

Postby Vincent Tse 1K » Fri Mar 02, 2018 9:05 pm

If a reaction is "first order", it simply means that the rate is proportional to the concentrations of one of the reactants.
If a reaction is "second order", it simply means that the rate is proportional to the SQUARE of the concentrations of that reactant.
A reaction being first order does not necessarily indicate that it is faster than a second order reaction, just that changing the concentrations of a reactant in the first order reaction has a less "drastic" effect on the rate than if you made that same concentration change to a second order reaction.


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