How long will it take to fill a tank that has a volume of 10 m3? Two streams flow into the tank. Stream A is a water-based solution that flows in at 500 L/min with a density of 1000 kg/m3 . Stream B is another water-based solution that starts flowing into the tank 2 minutes after A (A keeps flowing) and has a flow rate of 250 kg/min with a density of 1000 kg/m3 . Use an unsteady- state mass balance formulation and solution approach to arrive at your answer. Hint: Analyze the 0 to 2 minute period first and use the output as the initial condition for the remaining fill time