The overall reaction
A → B
proceeds via the following elementary steps
1) A + S â‡„ AS r1 = k1 [ CACS– CAS/KA ]
2) AS â‡„ BS r2= k2 [CAS – CBS/KS ]
3) BS â‡„ B + S r3= k3 [CBS– CBCSKB ]
If CS = CStot/(1+kxCA + kxkyCA)
where kx and ky could either be kA, kS, or kB
Which step is rate limiting?
a) Step 1
b) Step 2
c) Step 3
d) Not enough info
The question belongs to Chemical Engineering and the question is about rate of limiting in overall reactions.
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