A tank contains 1000 kg of a 10 % salt solution. A stream containing salt at 20 % concentration enters the tank at 20 kg/min and the mixture leaves the tank after complete mixing at a rate of 10 kg/min. Obtain an expression for the salt concentration in the outlet as a function of time and the salt concentration in the tank after 1 hour. What will be the time at which the salt concentration in the tank will be 15%?

Q: 16. The air in a small room 12 ft by 8 ft by 8 ft is 3% carbon monoxide. Starting at t=0, fresh air…

A: Given data: Dimension of room = 12 ft × 8 ft × 8 ft Volumetric flow rate of fresh air = 100 ft3/min…

Q: Bananas are ripened in an air tight and insulated room by using ethylene  gas at 63 °F. Initially…

A: Given, The temperature of the room, T = 63 °F = 290.37 K The volume of the room, V = 25 m3 The…

Q: 3. The flow rate of liquid effluent from a chemical plant is measured to be 20 m/hr and has a…

A: Given, volumetric flow rate of the effluent, V = 20 m3/hr density of the liquid effluent, ρ = 1000…

Q: 2. pure water and salt granules are continuously fed into a well-mixed tank at a rate qw(t) [L/s]…

A: Simple figure is qw=qw(t) w=w(t) c=c(t) qout=qout(t) ρ(c)=ρw+∝c Write Component mass balance on…

Q: 3. Sea water is to be desalinized by reverse osmosis (RO) using the process shown in Figure 1. The…

A: Note: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question…

Q: If the tank is filled initially with 1000 kg of the inlet solution, how long after the outlet pump…

A:

Q: Derive the differential equation that describes the desorption in a plug flow basin (Hint: write a…

A: To derive the differential equation that describes the desorption in a plug flow basin

Q: Methane is fed to a combustion chamber at the rate of 9 lbm/min where it is burned completely with…

A: Given that, The mass flow rate of methane CH4 = 9 lb/min The molecular weight of CH4 = 16 lb/lbmol…

Q: A wastewater treatment plant must disinfect its effluent before discharging the wastewater to a…

A: The length of the pipe required by the given wastewater plant for the disinfection process is to be…

Q: 1. [Aeration tank sizing, oxygen requirements] A water company is to install an activated sludge…

A: Given,

Q: A process to purify glycerine from 10% to 25% is composed of an extraction tower and a distillation…

A: The flow sheet of the process can be shown as below Let x, y be the flow rate of top and bottom…

Q: You can assume constant molar flow rates 3. A saturated vapor feed that is 90 %mol maleic anhydride…

A: given =  since feed is sat vapor hence PsM + PBs = PT hence  PsM + PBs = 99.8 also, the…

Q: 7-31. In the air dryer illustrated in Figure 7.31, part of the effluent air stream is to be recycled…

A: The mole fraction of water in stream one, stream two, and stream five are determined. The amount of…

Q: A large tank filled with a mixture of methane and air at 102 kPa and 25 ⁰C is connected to another…

A: Given, The pressure, P = 102 kPa The temperature, T = 25°C = 25+273 K = 298 K We know, Gas constant,…

Q: A container contains 600 kg solution which includes 6% sugar. It is homogeneously stirred. Another…

A: Mass of solution in the container, mC = 600 kg Mass fraction of sugar (S) in the container, xC(S) =…

Q: 10. A container is separated into two halves by a membrane. Your lab partner assistant, Thurmond, is…

A: In an osmosis process, when a two solutions containing two different concentration  are separated by…

Process Flow Diagram

A process flow diagram is a representation of various components, how they are arranged, and in what manner or sequence they work in correspondence to each other. It is a graphical way of representing a process.