- 问题详情:金红石(TiO2)制取单质Ti,涉及的步骤:TiO2—→TiCl4Ti已知:①C(s)+O2(g)===CO2(g)ΔH=-393.5kJ·mol-1②2CO(g)+O2(g)===2CO2(g)ΔH=-556kJ·mol-1③TiO2(s)+2Cl2(g)===TiCl4(s)+O2(g)ΔH=+141kJ·mol-1则:TiO2(s)+2Cl2(g)+2C(s)===TiCl4(s)+2CO(g)ΔH=________。【回答】*-80kJ·mol-1解...
- 21269
- 问题详情:根据盖斯定律计算:已知金刚石和石墨分别在氧气中完全燃烧的热化学方程式为C(金刚石,s)+O2(g)===CO2(g)ΔH=-395.41kJ/mol,C(石墨,s)+O2(g)===CO2(g)ΔH=-393.51kJ/mol,则金刚石转化为石墨时的热化学方程式为______________________________________________________________...
- 13445