The definition of reaction rate: The change of concentration of substances in a certain unit time. Concentration is the amount of substances divided by volume of mixture.
As a mathematic equation: Rate=(Changing of concentration of substances)/(unit time).
And further, assuming chemical reaction is A-->B.
So the average rate of a reaction is the concentration change of entire reaction over the entire reaction time.
We can write a forward rate equation based on the definition that is:
Rate=([B]t-[B]0)/(t-0)=Δ[B]/Δt [B]:Concentration of B
Also there is a reverse rate equation:
Rate=([A]t-[A]0)/(t-0)=Δ[A]/Δt [A]:Concentration of A
The relationship between forward and reverse rate:
RateB = -RateA
For most chemical reaction:
aA+bB-->pP+qQ
Basically, most equations of rate are conclude by countless experiments. And for the factors that influence the rate of reaction, one is temperature and another is the use of catalysis.
Your introduction about chemistry reaction rate is really interesting, I would recommend changing the color of your words to make them fit into the background.
ReplyDeleteThanks!!! Already changed!!!!!!!!!!!
DeleteYour blog's structure is so clean to read. I learned how to use math way to calculate the reaction rate. I am in chemistry sides too and in my suggests, I think you can add more details about the reaction rate. Like in chemical sides, we can add catalyst in order to change the reaction rate.
ReplyDeleteThank you for your response. This post I was just introduce what is reaction rate, and for public I think it is kind of hard to understand the reason of why temperature or catalysis will change the rate, after all they are not chemical filed. So that is why I didn't spend too many time on that. Thanks anyway!!
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