问题描述:
由金红石(TiO 2 )制取单质Ti,涉及的步骤为:已知: ①C(s)+O 2 (g)====CO 2 (g) ΔH=-393.5 kJ·mol -1 ②2CO(g)+O 2 (g) ====2CO 2 (g) ΔH=-566 kJ·mol -1 ③TiO 2 (s)+2Cl 2 (g) ====TiCl 4 (s)+O 2 (g) ΔH=+141 kJ·mol -1 则 (1)TiO 2 (s)+2Cl 2 (g)+2C(s) ====TiCl 4 (s)+2CO(g)的ΔH=____________________。 (2)碳在氧气中不完全燃烧生成CO的热化学方程式为_______________________________。 |
最佳答案:
(1)-80kJ·mol -1 (2)C(s)+1/2O 2 (g)==CO(g) ΔH=-110.5 kJ·mol -1 |