- 问题详情: 在密闭容器中进行反应①Fe(s)+C02(g)FeO(s)+CO(g) ΔH1=akJ·mol一反应②2CO(g)+02(g)2C02(g) △H2=bkJ·mol-反应③2Fe(s)+02(g)2FeO(s) △H3(1)△H3=___________(用含a、b的代数式表示)。(2)反应①的化学平衡常数表达式K=____________,已知500℃时反应...
- 8170
- 问题详情:已知:(1)H2(g)+O2(g)=H2O(g) △H1=akJ·mol-1 (2)2H2(g)+O2(g)=2H2O(g) △H2=bkJ·mol-1 (3)H2(g)+O2(g)=H2O(l) △H3=ckJ·mol-1 (4)2H2(g)+O2(g)=2H2O(l) △...
- 23277
- 问题详情:已知:(1)H2(g)+1/2O2(g)====H2O(g) ΔH1=akJ·mol-1(2)2H2(g)+O2(g)====2H2O(g) ΔH2=bkJ·mol-1(3)H2(g)+1/2O2(g)====H2O(l) ΔH3=ckJ·mol-1(4)2H2(g)+O2(g)====2H2O(l) ΔH4=dkJ·mol-1下列关系式正确的是A.a<c<0 B.b>d>0 C.2a=b<0 D.2c=d>0...
- 18628
- 问题详情:已知:(1)H2(g)+O2(g)====H2O(g) ΔH1=akJ·mol-1(2)2H2(g)+O2(g)====2H2O(g) ΔH2=bkJ·mol-1(3)H2(g)+O2(g)====H2O(l) ΔH3=ckJ·mol-1(4)2H2(g)+O2(g)====2H2O(l) ΔH4=dkJ·mol-1下列关系式正确的是( )A.a<c<0 B.b>d>0 C.2a=b<0 D.2c=d>0...
- 18698
- 问题详情:已知N2(g)+H2(g)=N(g)+3H(g) ΔH1=+akJ·mol-1;N(g)+3H(g)=NH3(g) ΔH2=-bkJ·mol-1;NH3(g)=NH3(l) ΔH3=-ckJ·mol-1试写出N2(g)和H2(g)反应生成液氨的热化学方程式:__。【回答】N2(g)+3H2(g)=2NH3(l) ΔH=-2(b+c-a)kJ·mol-1【解析】①N2(g)+H2(g)=...
- 21115