The temperature of oxyacetylene flame is about _________ and that of oxyhydrogen flame is approximately_________ .
1000 oC; 1500 oC
1500 oC; 1000 oC
2800oC; 3000oC
3000oC; 2800oC
The temperature of oxyacetylene flame is about 3000oC and that of oxyhydrogen flame is approximately 2800oC.