- #1
Fluidman117
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Homework Statement
I am working on chemical reaction engineering problem and it involves some math, which I am not able to figure out...
I have to find the residence time for maximum production, which is in the case when : (dη_p)/dτ=0
I have to find the τ (residence time).
Homework Equations
η_p=0.1τ/(1+0.4τ+0.04τ^2)
The Attempt at a Solution
I figure I have to use the quotient rule:
d[f/g]=(f'g-fg')/g^2
f=0.1τ
g=1+0.4τ+0.04τ^2
When I use the rule, I come up with an number which is not the same as in the answers. The reason is I think that I don't know how to take into account the condition that (dη_p)/dτ=0