Chimie fizică generală - Lorentz JÄNTSCHI

→ problema nu are soluţie analitică;
→ se pot obţine doar soluţii numerice;
→ se porneşte de la ecuaţiile explicite;
o program PHP (cmd>"php my_program.php > a.txt" - Figura 2.6; temă: foaie de
calcul Excel - vezi "mecanismul Lindemann - Hinshelwood"):
Figura 2.6. Evoluţia reacţiei în mecanismul Michaelis-Menten
y=y(x,t) a=0.2 a=0.4 a=0.6 a=0.8
b=10
b=2
b=0.4
b=0.16
1.0
0.8
1.0
0.6
0.8
1.0
0.4
0.6
0.8
1.0
0.2
0.4
0.6
0.8
0.0
0.2
0.4
0.6
0.0
0.2
0.4
0.0
0.2
0.0
2
2
2
2
1
1
1
1
0 0
0 0
0 0
0 0
2
2
2
2
4
4
4
4
6
6
6
6
8
8
8
8
1.0
0.8
1.0
0.6
0.8
1.0
0.4
0.6
0.8
1.0
0.2
0.4
0.6
0.8
0.0
0.2
0.4
0.6
0.0
0.2
0.4
0.0
0.2
0.0
2
2
2
2
1
1
1
1
0 0
0 0
0 0
0 0
2
2
2
2
4
4
4
4
6
6
6
6
8
8
8
8
1.0
0.8
1.0
0.6
0.8
1.0
0.4
0.6
0.8
1.0
0.2
0.4
0.6
0.8
0.0
0.2
0.4
0.6
0.0
0.2
0.4
0.0
0.2
0.0
2
2
2
2
1
1
1
1
0 0
0 0
0 0
0 0
2
2
2
2
4
4
4
4
6
6
6
6
8
8
8
8
1.0
0.8
1.0
0.6
0.8
1.0
0.4
0.6
0.8
1.0
0.2
0.4
0.6
0.8
0.0
0.2
0.4
0.6
0.0
0.2
0.4
0.0
0.2
0.0
2
2
2
2
1
1
1
1
0 0
0 0
0 0
0 0
2
2
2
2
4
4
4
4
6
6
6
6
8
8
8
8
CFG-34