Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Pertaining to Frequency Factor
Kavion123
Harmless
*




Posts: 23
Registered: 12-1-2015
Location: Tampa, FL
Member Is Offline

Mood: No Mood

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...
View user's profile View All Posts By User
deltaH
Dangerous source of unreferenced speculation
*****




Posts: 1663
Registered: 30-9-2013
Location: South Africa
Member Is Offline

Mood: Heavily protonated

[*] 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]




Mind your step or step your mind. Website: www.ideashack.org
View user's profile Visit user's homepage View All Posts By User
j_sum1
Administrator
********




Posts: 6225
Registered: 4-10-2014
Location: Unmoved
Member Is Offline

Mood: Organised

[*] 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.
View user's profile View All Posts By User

  Go To Top