-
發表於:2019-08-10
問題詳情:已知:①2C(s)+O2(g)===2CO(g)ΔH=-221.0kJ·mol-1;②2H2(g)+O2(g)===2H2O(g)ΔH=-483.6kJ·mol-1。則製備水煤氣的反應C(s)+H2O(g)===CO(g)+H2(g)的ΔH為()A.+262.6kJ·mol-1B.-131.3kJ·mol-1 ...
-
發表於:2021-06-17
問題詳情:已知①2C(s)+O2(g)===2CO(g) △H=-221.0kJ·mol-1 ②2H2(g)+O2(g)===2H2O(g) △H=-483.6kJ·mol-1則反應C(s)+H2O(g)===CO(g)+H2(g...
-
發表於:2019-09-16
問題詳情:已知①2C(s)+O2(g)2CO(g)ΔH=-221.0kJ·mol-1 ②2H2(g)+O2(g)2H2O(g)ΔH=-483.6kJ·mol-1則製備水煤氣的反應C(s)+H2O(g)CO(g)+H2(g)ΔH為()A.+262.6kJ·mol-1...
-
發表於:2021-03-19
問題詳情:已知:①2C(s)+O2(g)2CO(g)ΔH=-221.0kJ·mol-1;②2H2(g)+O2(g)2H2O(g)ΔH=-483.6kJ·mol-1。則製備水煤氣的反應C(s)+H2O(g)CO(g)+H2(g)的ΔH為()A.+262.6kJ·mol-1B.-131.3kJ...