Composite Reactions & the Steady State Approximation

DECOMPOSITION OF AZOMETHANE

Hint

Remember: A(B + C) = AB + AC

Example:

The equation
AX2 + AY + A = Z
can be rewritten as
A(X2 + Y + 1) = Z

Obtaining the Steady State Concentration of (Azomethane)* - Step 2

+ k-1[AZO][AZO*] + k2[AZO*] = k1[AZO]2

The next step is to bring [AZO*] to the front of a bracket on the left hand side of the equation, i.e. the resulting equation will have the form of

[AZO*](. . .) = k1[AZO]2

The result of this rearrangement will be

[AZO*]([AZO] + k2) = k1[AZO]2

[AZO*]([AZO] + [AZO*]) = k1[AZO]2

[AZO*](k-1 + k2) = k1[AZO]2

[AZO*](k-1[AZO] + k2) = k1[AZO]2

[AZO*](k-1[AZO][AZO*] + k2[AZO*]) = k1[AZO]2