IUBio

Catalysts always shift chemical equilibrium

Lukasz Salwinski lukasz at wlheye.jsei.ucla.edu
Fri Jan 30 12:23:28 EST 1998


-- 

>Athel, I have presented a few equations. Please tell me which one is wrong.


it was pretty clear form Athel's post no change of equilibrium constant is possible.
but if you've got problems with your equqtions:

>Let us assume that what the second law says is correct, that the equilibrium
>concentrations have remained the same and that, for simplicity, the rate of
                                                 ^^^^^^^^^^^^^^

                                                 this simplification is not valid and
                                                 leads to utter nonsense that followed

>the catalyzed forward reaction is determined by the first step - bonding of
>A to E. Then
>
>     V+ = K+(A)(E) = K-(C)(E) = V-                                   /2/

why not valid ? - because in /2/ (B) suddenly disappeared. so according to 
/2/ concentration of B can changed to anything. then, according to /2/ equilibrium 
concentrations of A and C should not change. utter nonsense.

l



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