A tank initially holds 140 L of salt water with density of 1.05g/cm3. Over a 30-minute...

A tank initially holds 140 L of salt water with density of 1.05g/cm3. Over a 30-minute period, both hot and cold water enter (Q[hot]: Q[cold]= 3:1) the tank while mixed warm water is drained from one outlet. The discharge rate at the outlet is 25L/min and the volume of the water left in the tank at the end of 30 minutes is 40 L. What is the mass flow rate of cold water entering.

Expert Solution

Amanda K answered 7 months ago

A tank initially contains 10 liters of clean water (with no salt in it). Every minute,...

A tank initially contains 10 liters of clean water (with no salt in it). Every minute, a solution containing one liter of water and one gram of salt is added to the tank, and two liters of fluid are drained from the tank. The fluid in the tank is mixed continuously so that the salt is distributed evenly throughout the water in the tank. How many minutes does it take for the tank to contain 2 grams of salt?

2. A tank initially contains 120 L of pure water. A salt mixture containing a concentration of...

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A tank contains 70 kg of salt and 2000 L of water. Water containing 0.4kg/L of...

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Problem 3.034 A closed, rigid tank is filled with water. Initially, the tank holds 0.4 lb...

Problem 3.034 A closed, rigid tank is filled with water. Initially, the tank holds 0.4 lb of saturated vapor and 4.0 lb of saturated liquid, each at 212°F. The water is heated until the tank contains only saturated vapor. Kinetic and potential energy effects can be ignored. Determine the volume of the tank, in ft3, the temperature at the final state, in °F, and the heat transfer, in Btu.

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A tank contains 90 kg of salt and 2000 L of water: Pure water enters a...

A tank contains 90 kg of salt and 2000 L of water: Pure water enters a tank at the rate 8 L/min. The solution is mixed and drains from the tank at the rate 4 L/min. What is the amount of salt in the tank initially? Find the amount f salt in the tank after 4.5 hours. Find the concentration of salt in the solution in the tank as the time approaches infinity. (Assume your tank is large enough to...

a) A salt-water tank has pure water flowing into it at 5 L/min. The contents of...

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A tank initially contains 300 gallons of a salt solution made by dissolving 30 pounds of...

A tank initially contains 300 gallons of a salt solution made by dissolving 30 pounds of salt in water. A solution containing 0.6 pounds of salt per gallon enters the tank at a rate of 5 gallons per minute. A drain is opened at the bottom of the tank through which the well stirred solution leaves the tank at the same rate of 5 gallons per minute. Let y(t) denote the amount of salt (in pounds) which is in the...

At time t=0 a tank holds 550 gallons of water with 100 pounds of dissolved salt....

At time t=0 a tank holds 550 gallons of water with 100 pounds of dissolved salt. An input pipe brings in solution at 8 gallons per minute at a concentration of 2 pounds per gallon. An output pipe carries away solution at 2 gallons per minute. Find how much salt is in the tank after 45 minutes.

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