It is desired to measure the rate at which waste gases are passing up a stack. The gases entering contain 2.1 % CO2 by weight. Pure CO2 is introduced at the bottom of the stack at a measured rate of 2.2 kg/min. It is found that the gases leaving the stack contain 3.2% CO2 by wt. Calculate the rate of flow in kg/min of the entering gases.

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: A combustion engine has been made to use a mixture of liquid hydrogen and liquid oxygen as a fuel…

A: Given data: Length of tube = 1 m  Diameter of tube = 0.8 m Flow rate of exhaust gas = 72 kg/s…

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

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

Q: Carbon dioxide is added at a rate of 10 kg/h to an air stream and the air is sampled at a sufficient…

A:

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: Relative  volatility  is  a  measure  of  the  difference  between  the  vapour  pressure  of  the…

A: The term volatility is generally used when handling liquids. Volatility is a measure of vaporizing…

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: A mixture containing 45.0 %mole benzene (B), 30%mole toluene (T), and 25 %mole xylene (X) is fed to…

A: Given :Mixture containingBenzene Toluene Xylene Bottom product:Xylene Benzene87.9% of the xylene in…

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: Problem 1: Reynold's number a rotating brush uses a device similar to the device shown in HD Figure…

A:

Q: Water containing 0.5 Kg/L of salt is pumped into a tank at a rate of 2L/min, and the well-stirred…

A: Salt solution CA0=0.5 Kg/L v= 2L/min t=10 min Fresh water v= 2L/min t=10 min total t= 20 min…

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: Simplify the general energy balance so as to represent the process in each of the following cases.…

A: Energy conservation law: The total energy of any system combined with the energy of its surroundings…

Q: "1.12 Water is flowing through a 2-inch diameter pipe with a velocity of 3 ft/s. (f) (Ib), (a) What…

A:

Q: One way to make coal “cleaner” is to gasify the coal into “city gas”. In a proposed molten-iron…

A: Step 1: V = 106 lit           T1= 1475+273 K            T2= 25+273 K            R=0.0821…

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: 4. [Scrubber]. A coal-fired combustion system produces flue gas that contains particulate matter. To…

A: A table with particle diameter, particle mass at scrubber inlet and particle mass at scrubber outlet…

Basic Chemical Calculations (Process and Variables)

A basic chemical calculation involves the application of the law of chemical proportions to various reactions and material and energy balance calculations on various chemical processes. Basic chemical calculation helps students analyze various chemical processes and develop problem-solving skills. The chemical manufacturing processes are divided into unit operations involving physical changes of material and unit processes involving the chemical transformation of materials. For instance, fluid flow, heat transfer, and mass transfer are unit operations, and oxidation, reduction, and pyrolysis are unit processes.