The Use of Response Surface Methodology in Ammonia Oxidation Reaction Study

Table 4

Analysis of variance (ANOVA) for ammonia oxidation efficiency (R₁).

Source	Sum of squares	df	Mean square	value	value
Model	11.40	5	2.28	20.90	0.0023
X1	11.26	1	11.26	103.26	0.0002
X2	0.0052	1	0.0052	0.0478	0.8355
X1X2	0.0942	1	0.0942	0.8639	0.3953
	0.0061	1	0.0061	0.0558	0.8227
	0.0371	1	0.0371	0.3403	0.5850
Residual	0.5452	5	0.1090
Lack of fit	0.4771	3	0.1590	4.67	0.1815
Pure error	0.0681	2	0.0341
Cor. total	11.94	10