Hey folks!

Long time since I posted here!

I would just like to run by you a differential equation that models the mass flow in a Completely mixed reactor under step input that I have solved, but my lecture notes present a different solution.

V, c_i , Q and k are constants.

I came up with the final answer of :

My lecture notes present a final solution of:

If some one could shed some light on this, I would really appreciate it!

Thank you.