2. A large tank initially contains of Salt is dissolved. Starting at t=o ,pure water frows into the tank at the rate of 5 gal per min. The mixture is k ept uniform by stiring } the well- Stired muture Simutaniaucly fow out at a rate of 2 gal/min gallons of brine in which 516 a) How much salt is in the tank at the end of 10 min b) If the capacity of the tank is 200 gallons, what is the salt concentration at the moment the tank overflows?
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- A tank initially contains 200 liters of brine with 20 kg of salt solution. Brine containing 0.25 kg per liter of salt flows into the tank at the rate of 3 liters/min, and the mixture kept uniform by stirring, flows out at the rate of 2 liters/minute. Determine the time when the concentration of salt becomes 0.15kg/liter.A large tank initially filled with 150 gal of fluid contains 10 lb of dissolved solute. Another solution containing 0.5 lb of solute per gallon is driven into the tank at 5 gpm where they are mixed well. The solution is then released at a rate of 4 gpm. Find the number of kilograms of the solute after 1/2 hour. Assume that the tank is very large that it is not affected by the rate of accumulation up to 1 hour.A tank contains 400 liters of brine holding 100 kg of salt in solution. Water containing 125g of salt per liter flows into the tank at the rate of 12 liters per minute, and the mixture, kept uniform by stirring, flows out at the same rate. Find the amount of salt at the end of 90 minutes.
- Suppose that a large mixing tank initially holds 300 gallons of water in which 50 pounds of salt have been dissolved. Pure water is pumped into the tank at a rate of 3 gal/min, and when the solution is well-stirred, it is then pumped out at the same rate. Determine the amount of salt in the tank after 1 hour.A 131 L mixing tank initially contains 65 L of brine solution with a concentration of 7 g/L. Brine solution with a concentration of 9 g/L flows into the tank at a rate of 7 L/min. The solution inside the tank is kept well-stirred and is discharged at the rate of 3 L/min. Determine the amount of salt, in grams, inside the tank at the moment before it overflows.A large tank is partially filled with 400 L of fluid in which 5 kg of salt is dissolved. Brine containing 0.25 kg per liter is pumped into the tank at a rate of 20 L/min. The well-mixed solution is then pumped out at a slower rate of 15 L/min. Find the number of pounds of salt in the tank after 30 minutes.
- A tank with a capacity of 4000 liters holds 2000 liters of brine that contains 50kg of dissolved salt. Brine with a salt concentration of 0.2kg per liter is piped into the tank at a rate of 40 liters per minute. Wellmixed brine is drawn off at k liters per minute. Create a model DE that shows the change of salt with respect to time.A cylindrical tank 24 inches in radius and 2 meters tall initially contains 100 gal of cane juice. A level sensor is installed in the tank which signals an alarm once 70% of the total volume of the tank has been reached. At t=0, cane juice containing 40% sugar is poured into the tank at the rate of 15gpm, while the stirred mixture leaves at a rate of 5 gpm. assuming that due to operator negligence, this process continued at constant rates, after how many minutes will the alarm sound. Use 1 gal = 3.785 Li.A 100 L mixing tank initially contains 50 L of brine solution with 16 g/L concentration. Brinesolutions with a concentration of 9 g/L and 7 g/L are flowing into the tank at a rate of 4 L/minand 2 L/min, respectively. The solution inside the tank is kept well-stirred and is dischargedat a rate of 5 L/min. Determine the a) concentration of brine inside the tank the moment it isfull, and b) time it takes to achieve a concentration of 12 g/L.
- Consider a tank with volume 100 liters containing a salt solution. Suppose a solution with 2 kg/liter of salt flows into the tank at a rate of 5 liters/min. The solution of the tank is well-mixed. Solution flows out of the tank at a rate of 5 liters/min. If initially there are 20 kg of salt in the tank, how much salt will be in the tank after one hour?A spherical snowball is melting so that its diameter is decreasing at a rate of 0.4 cm/min. At what is the rate is the volume of the snowball changing when the diameter is 14 cm? The volume is changing at a rate of cm^3/min.A tank initially contains 40 gal of sugar water having a concentration of 3 lb of sugar for each gallon of water. At time zero, sugar water with a concentration of 4 lb of sugar per gal begins pouring into the tank at a rate of 2 gal per minute. Simultaneously, a drain is opened at the bottom of the tank so that the volume of the sugar-water solution in the tank remains constant. How much sugar is in the tank after 15 minutes?