1. May 29, 2008 #1

   kasse

   

   -d[A]/dt = k[A]
   
   - Int( d[A]/[A]) = Int (k dt)
   
   - ( ln[A] + ln[A₀] ) = kt
   
   ln[A] = -kt - ln[A₀]
   
   
   Where am I wrong?

    

   kasse, May 29, 2008
2. 
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3. May 29, 2008 #2

   epenguin

   

   Homework Helper

   Gold Member

   - ( ln[A] - ln[A0] ) = kt

    

   epenguin, May 29, 2008
4. May 29, 2008 #3

   kasse

   

   Why "-"?

    

   kasse, May 29, 2008
5. May 29, 2008 #4

   DavidWhitbeck

   

   It's always final - initial when doing integrals i.e.
   
   [tex]F(b) - F(a) = \int_{a}^{b} f(x) dx[/tex]
   
   and not +.

    

   DavidWhitbeck, May 29, 2008

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