SIMULATION Determining the Rate Law I O [A] vs Time O In[A] vs Time O 1MA] vs Time O Least Squares Plot Time, s The reaction A C was performed and the concentration vs. time data below ocollected. time, s 1. 3 4 6. 7. [A], mol/L 0.9287 0.1820 0.1009 0.06980 0.05335 0.04318 0.03626 0.03126 0.02746 Complete the rate law for the reaction by filling in the values for the rate constant and reaction order. Rate = k[A}* !! rate constant (without units) reaction order = Next (1 of 1) Show Approach Check Ivl

Sub: Process Dynamics & Control

Here is a graph of the pressure of ozone O3 in a reaction vessel during a certain chemical reaction. Is O3 being created or destroyed by the chemical reaction? If O3 is being created or destroyed, what is the rate at which it is being created or destroyed 70 seconds after the reaction starts? If O3 is being created or destroyed, what is the average rate at which it is being created or destroyed during the first 70 seconds of the reaction? Round all answers to 2 significant figures.

A substrate S will be converted to a product P by an irreversible uni-molecular enzyme reaction with the Michaelis constant Km = 0.010 kmol m^-3 and the maximum rate Vmax = 2.0 x 10^-5 kmol m^-3 s^-1. 1. A substrate solution of 0.1 kmol m^-3 is reacted in a stirred-batch reactor using the free enzyme. Determine the initial reaction rate and the conversion of the substrate after 10 min. 2. Immobilized-enzyme beads with a diameter of 10 mm containing the same amount of the enzyme above are used in the same stirred-batch reactor. Determine the initial reaction rate of the substrate solution of 0.1 kmol m^-3. Assume that the effective diffusion coefficient of the substrate in the catalyst beads is 1.0 x 10^-6 cm^2 s^-1. 3. How small should the diameter of immobilized-enzyme beads be to achieve an effectiveness factor larger than 0.9 under the same reaction conditions, as in case (2)?

1. The kinetics of an enzyme-catalyzed reaction is described as r = (1+ aI)(K1 + S)* The following data were obtained in rate studies conducted in a well-mixed steady state continuous flow reactor using the same enzyme loading. S (mol/L) I (mol/L) r (mol/{L.min}) | 4.3 0.6 0.3 0.5 0.05 3.8 2.1 The experimental data should provide enough relations for the unknown kinetic parameters, rm, K1, and a (no need to use linear regression). Solve the relations to obtain the parameter values.

Q3: Ethyl ether is made by dehydration of ethyl alcohol in the presence of sulfuric acid at 140 °C 2C2₂H5OH →→C4H₁0O+H₂O A simplified process is shown in figure below. If 87% conversion of the alcohol fed to reactor occurs per pass stream in reactor. 1- Write the equations that simulate above process. 2- Perform the degree of freedom for the overall and sub processes (List your answer in table). Pure ethyl ether (1200 kg/hr) 93% H₂SO4 7% H₂0 Alcohol separation Dilute H₂SO4 solution Fresh feed 95% alcohol Reactor Ether separation Recycle 92% alcohol 8% water Waste Sulfuric acid and water

Given the following experimental data, calculate m the order of reactant A. Must calculate the rate first. A + B → C + D rate = k [A]m[B]n Concentration of [A] 0.60 M 0.30 M 0.20 M Concentration of [B] 0.12 M  0.12 M  0.12 M Average Reaction Time (s) 32.18 36.81 38.89 Rate (s-1)

Binary Distillation: The colum operates with a 1000 kgmoles/hr of a feed in which component A is the more volatile species. The feed q-value (thermal nature) is graphed as well and a specific reflux ratio designed and the appropriate operating line graphed. Solve d)

The irreversible reaction A - B was carried out in a batch reactor and the following concentration- time data were obtained as follows: to tz t3 ty Time (min) CA(mol/dm) 4 If the rate equation is expressed as : analysis to determine the kinetic constants k and 'n. 10 15 20 0.008 - rA=kC"A . Apply the differential method of 2.25 1 0.25

A chemical engineer is studying the rate of this reaction. He fills a reaction vessel with and measures its concentration as the reaction proceeds. Here's a graph of his data: 0.20.40.60.8100.20.40.60.811.20 Use this graph to answer the following questions: What is the half life of the reaction? Round your answer to significant digits. Suppose the rate of the reaction is known to be first order in . Calculate the value of the rate constant . Round your answer to significant digits. Also be sure you include the correct unit symbol. Predict the concentration of in the engineer's reaction vessel after seconds have passed. Assume no other reaction is important, and continue to assume the rate is first order in . Round your answer to significant digits.