20 sample documents related to ECH 146

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  PS8_1

  UC Davis ECH 146
  

   
   
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  PS8_2

  UC Davis ECH 146
  

   
   
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  hw7q3_summary_of_nlrs

  UC Davis ECH 146
  

  HW7Q3 Summary of NLR by Mathematica and Polymath Mathematica (including diethyl ether data points) k KA Equation (mol/g-cat/ (atm-1) atm1 or 2) 0.000120 0.0038 A 0.000009 0.1 0.000821 1.65 C 0.00011 0.20 0.000120 0.00081 D 0.000008 0.04 k \' Pethanol 0.000
   
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  statistics_for_hw7

  UC Davis ECH 146
  

  ECH146 winter 2008 HW7 Statistics % Score = Score 100% 115 HW7 %Scores Mean Standard Error Median Mode Standard Deviation Sample Variance Kurtosis Skewness Range Minimum Maximum Sum Count 68 3 72 83 19 376 0 0 91 17 109 3109 46 HW7 %Score 12 10 8 6 4 2 0
   
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  statistics_for_hw8

  UC Davis ECH 146
  

  ECH146 winter 2008 HW8 Statistics % Score = Score 100% 80 HW8 %Scores Mean Standard Error Median Mode Standard Deviation Sample Variance Kurtosis Skewness Range Minimum Maximum Sum Count 75 3 81 100 23 507 -1 -1 75 25 100 3280 44 HW8 %Score 14 12 10 Frequ
   
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  [Gates] 08WINTER - Exam1 SOLN

  UC Davis ECH 146
  

   
   
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  [Gates] 08WINTER - Exam2 SOLN

  UC Davis ECH 146
  

   
   
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  [Gates] 08WINTER - HWK1 SOLN

  UC Davis ECH 146
  

  0.22 0.2 0.18 Concentration of A, CA (mol/L) 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 50 100 Time (min) 150 200 250 6000 5000 4000 1/-rA (L*min/mol) 3000 2000 1000 0 0 0.1 0.2 0.3 0.4 0.5 Conversion X 0.6 0.7 0.8 0.9 18000 16000 14000 12000 1/-rA (L*min/m
   
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  [Gates] 08WINTER - HWK2 SOLN

  UC Davis ECH 146
  

  Fig 1.1: F vs V A 2 1.8 1.6 Molar flow rate of A, FA (mol/L hr) 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 5 10 15 20 25 30 Volume of PFR, V (L) 35 40 45 50 Fig 1.2: C vs A 2 1.8 1.6 Concentration of A, CA (mol/L) 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 5 10 15 20 25 30 Reside
   
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  [Gates] 08WINTER - HWK3 SOLN

  UC Davis ECH 146
  

  Fig 1.1: C vs t A 50 45 40 Concentration of A, CA (mol/s) 35 30 25 20 15 10 5 0 500 1000 1500 Time, t (s) 2000 2500 3000 Fig 1.2: -v/r vs C A A 6 5 4 -v/rA (L), L2/mol 3 2 1 0 10 15 20 25 30 35 Concentration of A, CA (mol/s) 40 45 50
   
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  [Gates] 08WINTER - HWK4 SOLN

  UC Davis ECH 146
  

  ECH 146 Winter, 2008 Problem Set 4 Due 2/08/08 1. The data shown in the table below were obtained for the reaction A 2B + C taking place in a batch reactor isothermally and with no volume change. The feed to the batch reactor was pure A. CA/molcm-3 62.5 5
   
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  [Gates] 08WINTER - HWK5 SOLN

  UC Davis ECH 146
  

  ECH 146 Winter, 2008 Problem Set 5 Due 2/15/08 1. The liquid-phase reaction of shown below takes place in a batch reactor at 25o C A+B C + D For an equal molar feed the following concentration-time data was obtained for A: CA/(mol/dm3 ) t/h 1.0 0 0.95 0.2
   
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  [Gates] 08WINTER - HWK6 SOLN

  UC Davis ECH 146
  

  Fig 1.1: ln(r) vs ln(C ) A 9 8 7 6 5 ln(r) 4 3 2 1 0 -1 -0.5 0 0.5 1 ln(C ) A 1.5 2 2.5 3 Fig 1.2: ln(r/C2 ) vs ln(C ) A B 2.5 2 1.5 1 ln(r/C2 ) A 0.5 0 -0.5 -1 0 0.5 1 1.5 ln(C ) B 2 2.5 3 Fig 2.1 k /k =10 ab 1 CA/CA0 0.9 CI/CA0 CP/CA0 0.8 0.7 0.6 C/CA0
   
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  [Gates] 08WINTER - HWK7 SOLN

  UC Davis ECH 146
  

  ECH 146 Winter, 2008 Problem Set 7 Due 3/07/08 This problem set gives students practice in applying the concepts of LangmuirHinshelwood kinetics and in analyzing kinetics of catalytic reactions and methods of nonlinear regression in data fitting. 1. Consi
   
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  [Gates] 08WINTER - HWK8 SOLN

  UC Davis ECH 146
  

  Fig 3.2: k 1 obs vs d 0.8 0.6 observed rate constant, kobs (min-1) 0.4 0.2 0 -0.2 -0.4 -0.6 0 0.2 0.4 0.6 0.8 1 1.2 diameter of particle, d (mm) 1.4 1.6 1.8 2
   
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  [Gates] 08WINTER - Quiz1 SOLN

  UC Davis ECH 146
  

  Q uiz 1 (1114/08) E CH 146, W inter 2008 ICLOSED BOOK] TIME ALOTTED: 20 MINUTES 1. A steady state reaction A ~ B was carried out at constant temperature in a p lug flow r eactor (PFR). The initial concentration o f A was 1.5 mol/L. There was no volume c
   
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  [Gates] 08WINTER - Quiz2 SOLN

  UC Davis ECH 146
  

   
   
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  grading_criteria_for_quiz_1

  UC Davis ECH 146
  

  Grading Criteria for Quiz #1 Criteria A1. Plot CA vs. residence time or FA vs. volume A2. Estimate slope (rA) B1. Integrate the design equation to get time; that is, show t = B2. Plot 1/-rA vs. time and indicate area for time B3. Estimate Area (time) CA 0
   
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  hw3q1_solution_x_0.7

  UC Davis ECH 146
  

  ECH146 Winter 2008 Solution for HW3Q1 with Polymath Tutorial This tutorial is purely based on the personal experience of the grader, and thus, there should be better ways to use Polymath. The textbook uses Polymath and there are many good tutorials on the
   
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  hw4q1b_non_linear_regression2

  UC Davis ECH 146
  

  ECH146 Winter 2008 Solution for HW4Q1b with Polymath Non Linear Regression Tutorial Problem Setting Characteristics of Reaction A 2B + C Isothermal no volume change rate equation known to follow rA = kC A Experimental condition: Bach reactor CA0 = 62.5 mo