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Author: Subject: Pertaining to Frequency Factor

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mad.gif posted on 15-1-2015 at 18:42
Pertaining to Frequency Factor

Remember that old equation k = Ae^(-Ea/RT)?

For some reason when I have both my rate and exponential factor, the frequency factor solved algebraically comes out different from the way the textbook tells me to do it. The textbook says to just draw a straight line from the points I plotted from the data until it hits the y-axis. That point on the Y-axis is my frequency factor. Anyone know why this is? There are no errors in my calculations...
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[*] posted on 16-1-2015 at 00:55

did you linearise by taking natural logs on both sides?

[Edited on 16-1-2015 by deltaH]

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[*] posted on 16-1-2015 at 01:21

No. I don't remember that partcular equation. But I recall many like it. Arrhenius equattions they are called.

Assuming that T is your independent variable, you linearise by plotting log(k) against 1/T.
That should do exactly what you want.
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