Using Coats–Redfern equation |
Stage |
Decomposition range (°C) |
A(S-1) |
Ea(kJ/mol) |
ΔH(kJ/mol) |
ΔS (kJ/mol K) |
ΔG (kJ/mol ) |
1st |
468 |
3.00×109 |
43.35 |
53.28 |
−0.031 |
163 |
2nd |
574 |
5.48×1011 |
72.87 |
73.42 |
−0.076 |
182 |
3rd |
798 |
2.86×106 |
113.76 |
104.96 |
−0.097 |
195 |
UsingHorowitz–Metzger equation |
1st |
468 |
2.99×109 |
43.33 |
114.48 |
−0.032 |
164 |
2nd |
574 |
5.49×1011 |
72.26 |
72.98 |
−0.076 |
181 |
3rd |
798 |
2.88×106 |
114.48 |
105.04 |
−0.097 |
193 |
UsingPiloyan–Novikova equation |
1st |
468 |
3.05×109 |
42.78 |
54.16 |
−0.028 |
165 |
2nd |
574 |
5.47×1011 |
71.98 |
73.48 |
−0.076 |
183 |
3rd |
798 |
2.89×106 |
114.33 |
105.07 |
−0.098 |
194 |
Using Coats–Redfern equation |
Stage |
Decomposition range (°C) |
A(S-1) |
Ea(kJ/mol) |
ΔH(kJ/mol) |
ΔS (kJ/mol K) |
ΔG (kJ/mol ) |
1st |
468 |
3.00×109 |
43.35 |
53.28 |
−0.031 |
163 |
2nd |
574 |
5.48×1011 |
72.87 |
73.42 |
−0.076 |
182 |
3rd |
798 |
2.86×106 |
113.76 |
104.96 |
−0.097 |
195 |
UsingHorowitz–Metzger equation |
1st |
468 |
2.99×109 |
43.33 |
114.48 |
−0.032 |
164 |
2nd |
574 |
5.49×1011 |
72.26 |
72.98 |
−0.076 |
181 |
3rd |
798 |
2.88×106 |
114.48 |
105.04 |
−0.097 |
193 |
UsingPiloyan–Novikova equation |
1st |
468 |
3.05×109 |
42.78 |
54.16 |
−0.028 |
165 |
2nd |
574 |
5.47×1011 |
71.98 |
73.48 |
−0.076 |
183 |
3rd |
798 |
2.89×106 |
114.33 |
105.07 |
−0.098 |
194 |