Question

Tank contains 3

kilograms of salt dissolved in 75
liters of water. A salt solution of 0.4
kg salt/L is pumped into the tank at a rate of 6
L/min and is drained at the same rate. Solve for the salt concentration at time t
. Assume the tank is well mixed at all times.

Answer 1

Salt Concentration at time t = (3 + 0.4*6*t) / (75 + 6*t) kg/L