题目列表(包括答案和解析)
已知:Fe2O3(s)+C(s)===CO2(g)+2Fe(s) ΔH=+234.14 kJ·mol-1
C(s)+O2(g)===CO2(g) ΔH=-393.5 kJ·mol-1
则2Fe(s)+O2(g)===Fe2O3(s)的ΔH是
A.-824.39 kJ·mol-1 B.+ 627.6 kJ·mol-1
C。-744.7 kJ·mol-1 D.-169.4 kJ·mol-1
已知:Fe2O3(s)+C(s)===CO2(g)+2Fe(s) ΔH=+234.14 kJ·mol-1
C(s)+O2(g)===CO2(g) ΔH=-393.5kJ·mol-1
则2Fe(s)+O2(g)===Fe2O3(s)的ΔH是
A.-824.39 kJ·mol-1 B.+ 627.6kJ·mol-1
C。-744.7 kJ·mol-1 D.-169.4kJ·mol-1
已知:Fe2O3(s)+C(s)===CO2(g)+2Fe(s) ΔH=+234.14 kJ·mol-1
C(s)+O2(g)===CO2(g) ΔH=-393.5 kJ·mol-1
则2Fe(s)+O2(g)===Fe2O3(s)的ΔH是
A.-824.39 kJ·mol-1 | B.+ 627.6 kJ·mol-1 |
C.-744.7 kJ·mol-1 | D.-169.4 kJ·mol-1 |
A.-824.39 kJ·mol-1 | B.+ 627.6 kJ·mol-1 |
C.-744.7 kJ·mol-1 | D.-169.4 kJ·mol-1 |
已知:Fe2O3(s)+C(s)CO2(g)+2Fe(s) ΔH=+234.14 kJ·mol-1 C(s)+O2(g)CO2(g) ΔH=-393.5 kJ·mol-1则2Fe(s)+O2(g)Fe2O3(s)的ΔH是 | |
[ ] | |
A. |
-824.39 kJ·mol-1 |
B. |
+627.6 kJ·mol-1 |
C. |
-744.7 kJ·mol-1 |
D. |
-169.4 kJ·mol-1 |
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com