关于2O2g2CO2g的百科

• 已知：①CH3COOH(l)＋2O2(g)===2CO2(g)＋2H2O(l)　ΔH1；②C(s)＋O2(g)...

• 问题详情：已知：①CH3COOH(l)＋2O2(g)===2CO2(g)＋2H2O(l)ΔH1；②C(s)＋O2(g)===CO2(g)ΔH2；③2H2(g)＋O2(g)===2H2O(l)ΔH3；④2CO2(g)＋4H2(g)===CH3COOH(l)＋2H2O(l)ΔH4；⑤2C(s)＋2H2(g)＋O2(g)===CH3COOH(l)ΔH5。下列关于上述反应焓变的判断正确的是()A．ΔH1>0，ΔH2<0           ...
• 2022-04-1629806