Activation Energy from Temperature and Rate Constant Data
Please see the attached file for the fully formatted problem(s). The decomposition of NO2 follows a second order rate equation. Data at different temperatures are as follows: T (K) 592 603 627 651.5 656 k (cm3/gmol.sec) 522 755 1700 4020 5030 Compute the energy of activation Energy fro ...continues
Rate Equation from Initial Pressures and Half Lives
Please see the attached file for the fully formatted problem(s). Problem: The thermal decomposition of nitrous oxide (N2O) in the gas phase at 1030 K is studied in a constant volume vessel at various initial pressures of N2O. The half-life data so obtained are as follows: po (mm Hg) 52.5 139 290 360 t1/2 (sec) ...continues
Kinetics of N2O: Finding the Reaction Rate from Percent Decomposition Data
Please see the attached file for the fully formatted problem(s). Establish the kinetics of the thermal decomposition of Nitrous oxide from the following data and find the reaction rate at 990 oC and an initial pressure of 200 mm Hg. t, min 20 53 100 % decomposition 23 50 73
Mixed Reactors in Series: Calculate the Fraction Hydrolyzed in the Last Reactor
Please see the attached file for the fully formatted problem(s). Acetic acid is hydrolyzed in three stirred tank reactors operated in series. The feed flows to the first reactor (V = 1 lit) at a rate of 400 cm3/min. The second and third reactors have volumes of 2 and 1.5 liters respectively. The first order irreversible rate ...continues
Kinetics from Continuous Stirreed Tank Reactor Data
Please see the attached file for the fully formatted problem(s). Problem. The kinetics of an aqueous phase decomposition of A is investigated in two CSTR's in series, the first having half the volume of the second. At steady state with a feed concentration of 4 gmol/L, and mean residence time of 65 sec in the second reactor, ...continues
Arranging Continuous Stirred-Tank Reactors (CSTR's)
Please see the attached file for the fully formatted problem(s). Problem: Two stirred tank reactors are available at a chemical plant, one of volume 100 m3 and the other of volume 30 m3. It is suggested that these tanks be used as a two stage CSTR for carrying out an irreversible liquid phase reaction, A + B Product ...continues
Rate Equation From CSTR (Continuous Stirred-Tank Reactor) Data
Please see the attached file for the fully formatted problem(s). Problem: From the following data find a satisfactory rate equation for the gas-phase decomposition of pure A, A ---> R + S, in a mixed flow reactor. Tau based on Inlet feed conditions, sec 0.423 5.1 13.5 44.0 192 XA (for CAo = 0.002 mol/lit) 0.22 0. ...continues
Rate Equation from PFR (Plug Flow Reactor) Data: Pyrolysis of Acetone
Please see the attached file for the fully formatted problem(s). Problem: The following conversion data were obtained in a tubular flow reactor for the gas-phase pyrolysis of acetone at 520 oC and 1 atm. CH3COCH3 ---> CH2=C=O + CH4 Flow rate, g/hr 130 50 21 10.8 Conversion of acetone 0.05 0.13 0.24 0.35 ...continues
PFR (Pug Flow Reactor) and CSTR (Continuous Stirred Tank Reactor) in Parallel
Please see the attached file for the fully formatted problem(s). An elementary liquid phase reaction (irreversible first order) A ---> R, takes place in a PFR and the conversion is 96%. If a mixed flow reactor of 10 times as large as the PFR is hooked up in parallel with the existing unit, by what fraction could the productio ...continues
Continuous Stirred Tank Reactor (CSTR) and Plug Flow Reactor (PFR) Comparison
Please see the attached file for the fully formatted problem(s). 1. Calculate the volume of a CSTR and of a PFR needed to convert 10 L/min of a 2.0 M solution of A to a concentration of 0.1 M. The reaction is A --> B, the rate law is -r = k CA, where k is 0.01667 sec-1. Which is larger? Why? 2. For the reaction given in p ...continues
