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hw3q1_solution_x_0.7

# hw3q1_solution_x_0.7 - ECH146 Winter 2008 Solution for...

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Ca (mol/cm^3) t (sec) 0.0500 0 0.0335 100 0.0275 200 0.0225 300 0.0185 400 0.0160 500 0.0148 600 0.0140 700 0.0138 800 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 web including the textbook’s author’s web site. Please refer to these superior resources. Junichi Ishii 2/02/2008 Problem Setting Characteristics of Reaction A 2B + C Isothermal no volume change Experimental condition: Bach reactor C A0 = 0.05 mol/cm^3 (pure) Design Spec/objectives PFR C A0 = 0.05 mol/cm^3 (pure) Volumetric flow rate =10 cm^3/sec X = 0.7 C A,outlet = 0.015 mol/cm^3 Find the volume of PFR Given the power law rate equation, estimate the order of this reaction based on the volume of PFR. (the k value is 0.6, and its unit is 3 3 sec mol cm cm mol α )

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A. Reaction Rate Estimation (Slope estimation) 1. Open “Polymath”, choose “Regress and Analyze Data” (Red arrow) 2. Input data in spread sheet (or copy and paste from excel) 3. Double click column header and input names “time” “Ca” (blue arrows) 4. Click “Analysis” tab at the right side of screen (Red arrow.)
5.

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