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1389 Views 5 Replies Latest reply: Oct 27, 2011 12:52 PM by FredKohlhepp RSS
ptc-3984262 Copper 1 posts since
Oct 2, 2011
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Oct 2, 2011 2:44 PM

Some please help me with an ODE problem!!

So for my Kinetics class I'm trying to derive a function in Mathcad to get the result I need to answer a question in the book.  First I need to verify that Mathcad can do this.  Can someone please tell me how to do this?  Thanks!

 

Irreversible 1st order reaction in PFTR (Parallel Reaction)

 

A→B   r1=k1*Ca

 

A→C  r2=k2*Ca

 

 

dCa/dt=-k1*Ca-k2*Ca

 

dCb/dt=k1*Ca

 

dCc/dt=k2*Ca

 

Boundary Condition:  Ca=Ca0

 

Ca(t)=Ca0*exp(-(k1+k2)*t)

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