### zero order reaction

Posted:

**Sun Mar 17, 2019 9:05 am**Why is it a zero order reaction with slope -k if the straight line fits to the data?

Created by Dr. Laurence Lavelle

https://lavelle.chem.ucla.edu/forum/

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=144&t=45229

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Posted: **Sun Mar 17, 2019 9:05 am**

Why is it a zero order reaction with slope -k if the straight line fits to the data?

Posted: **Sun Mar 17, 2019 9:28 am**

The slope is -k because the integrated rate law for zero order is

-kt + [A]o = [A]

similar to the straight line y= mx + b

[A] = -kt + [A]o

-kt + [A]o = [A]

similar to the straight line y= mx + b

[A] = -kt + [A]o

Posted: **Mon Mar 18, 2019 9:32 am**

The integrated rate for a first order reaction is A= -kt + Ao which is in the form of a linear equation where -k is the slope.

Posted: **Sun Mar 01, 2020 6:59 pm**

A zero order equation integrated gives a first order equation, which when graphed, gives a straight line, as opposed to a second order equation, like something with x^2, that gives a parabola.