Consider the tank shown in Figure 1. This system is arranged such that the concentration of salt in the tank is maintained at 10% salt by mass.
2.1) Under what conditions would this system be considered to be at steady state? (2 marks)
2.2) Under what conditions would this system be at unsteady state? (2 marks)
NB: In both cases, consider the inlet and outlet mass flow rates to be constant.
i, kg/s
10% w/w salt
rin, kg/s
Figure 1