Hello everyone,
I have a question regarding the rate of change in concentration with time. Let's say we have a stream of unsaturated brine with a concentration of 50 g/l NaCl and a flow rate of 20 l/min going into a tank, the tank has 700 l of 120 g/l NaCl brine. The outflow from the tank is also 20 l/min. My question is how long does it take to reach a new equilibrium and what is the concentration in the tank? I think I need to use derivative function to solve the problem, but i dont remember how to set the equation.
Thank you for your help.
Greatly appreciated.