Derive the material balance for a conservative pulse input tracer in a non- steady state CMFR. The reactor has a volume of 6000 L, a flow rate of 1 L/min, and a concentration of 50 mg/L at time 0. What is the effluent tracer concentration after 1 day?

In the tank of 100 liters of brine containing 50kg totally dissolved salt. Pure water is allowed to run into the tank at the rate of 3 liters per minute. Brine runs out of the tank at rate of 2 liters minute. The instantaneous concentration in the tank is kept uniform by stirring. How much salt is in the tank at the end of 2.1 hour?

In a certain resort with a swimming pool having a volume of 10,000 gallons, the pool water has a 0.01% chlorine concentration. The city water district started pumping water to the pool with concentration 0.001% at a rate of 5 gal/min. Water is flowing out of the pool also at the same rate. Chlorine concentration is the pool is considered safe if it does not exceed 0.0099%. In an hour of continuous pumping, would the chlorine concentration in the pool still be safe for use? Select the correct response: Cannot be determined. none of these It will still be safe for use. Swimming must not be allowed after one hour.

In a tank 100 liters of brine containing 50.0 kg total of dissolved salt. Pure water is allowed to run into the tank at the rate of 3.00 liters a minute. Brine runs out of the tank at the rate of 2.00 liters a minute. The instantaneous concentration in the tank is kept uniform by stirring. How much salt is in the tank at the end of one hour?

A tank contains 200 liters of fluid in which 30 grams of salt is dissolved. Brine containing 1 gram of salt per liter is pumped into the tank at a rate of 4 L/min; the well-mixed solution is pumped out at 3 L/min. Find the salt concentration expressed in percent by mass in the tank after 5 minutes. The density of salt is 2.16 g/mL, and that of water is 1 g/mL. *

A tank initially contains 80 L of a solution in which 20 g of salt is dissolved. A solution with a salt concentration of 2g/L is added at a rate of 5L/min. The solution is kept well mixed and is drained from the tank at a rate of 3L/min. Find the concentration of the solution in the tank after 30 minutes.

Suppose a brine containing 2 kg of salt per liter runs into a tank initially filled with 500 L of water containing 50 kg of salt. The brine enters the tank at a rate of 5 L/min. The mixture, kept uniform by stirring, is flowing out at the rate of 10 L/min. Find the amount of salt in the tank after 10 min. Find the concentration, in kilograms per liter, of salt in the tank after 10 min. When will the tank empty?

2. Initially, 22.73 kg. of salt is dissolved in a large tank holding 300 gallons of water. A brine solution is pumped into the tank at a rate of 3 gallons per minute and well-stirred solution is then pumped out at the same rate. If the concentration of the solution entering is 1/10 pounds per gallon, determine the amount of salt in the tank at the end of 1 and a half hour.

A tank initially have 100 L with 50 g of dissolved salt. brine is pumped into the tank at a rate of 2 L/min carrying 2 grams of salt per liter. The well-stirred mixture is pumped out of the tank at a rate of 3 L/min. Find the concentration of the solution after 1 hour.

A 100-gal tank initially contains pure water. A solution of dye containing 0.3 lb/gal flows into the tank at the rate of 5 gal/min and the resulting mixture flows out at the same rate. After 15 min, the process is stopped and fresh water flows into the tank at the rate of 5 gpm and the mixture flows out at the same rate. Find the concentration of dye in the tank at the end of 30 min.