Figure 4.10:

Reaction rate versus concentration for nth-order kinetics, r=kc_A^n, n\leq 0, k=1 for all orders.

Code for Figure 4.10

Text of the GNU GPL.

main.m

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
% Copyright (C) 2001, James B. Rawlings and John G. Ekerdt
%
% This program is free software; you can redistribute it and/or
% modify it under the terms of the GNU General Public License as
% published by the Free Software Foundation; either version 2, or (at
% your option) any later version.
%
% This program is distributed in the hope that it will be useful, but
% WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
% General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with this program; see the file COPYING.  If not, write to
% the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
% MA 02111-1307, USA.

% Revised 7/24/2018

npts = 100;
cfin = 3;
cmin = 0.001;
k = 1;
orders = [-2; -1; -0.5; 0];
% orders = [1; 2; 3; 1/2; 0];
norders = length(orders);
store = [];

for i = 1: norders
    c = linspace(cmin,cfin,npts)';
    n = orders(i);
    rate = k*c.^n;
    store = [store c rate];
end

save -ascii rateneg.dat store;

if (~ strcmp (getenv ('OMIT_PLOTS'), 'true')) % PLOTTING
    plot (store(:,1), store(:,2), store(:,3), store(:,4), ...
          store(:,5), store(:,6), store(:,7), store(:,8));
    axis ([0, 3, 0, 5]);
    % TITLE
end % PLOTTING