关于3O2g2Cu2Os的百科

• 已知：①2Cu2S(s)＋3O2(g)===2Cu2O(s)＋2SO2(g)　ΔH＝－768.2kJ·mol－...

• 问题详情：已知：①2Cu2S(s)＋3O2(g)===2Cu2O(s)＋2SO2(g)ΔH＝－768.2kJ·mol－1②2Cu2O(s)＋Cu2S(s)===6Cu(s)＋SO2(g)ΔH＝＋116.0kJ·mol－1则Cu2S(s)＋O2(g)===2Cu(s)＋SO2(g)ΔH＝___________________________________。【回答】*－217.4kJ·mol－1解析根据盖斯定律，将方程式×(①＋②)得Cu2S(s)＋O2(g)===...
• 2020-04-3030951