一定条件下,下列反应中水蒸气含量随反应时间的变化趋势符合下图的是
A.CO2(g) + 2NH3(g)=CO(NH2)2(s) + H2O(g) ΔH<0 |
B.CO2(g) + H2(g)=CO(g) + H2O(g) ΔH>0 |
C.CH3CH2OH(g)=CH2=CH2(g) + H2O(g) ΔH>0 |
D.2C6H5CH2CH3(g) + O2(g)=2C6H5CH=CH2(g) + 2H2O(g)ΔH<0 |
一定条件下,下列反应中水蒸气含量随反应时间的变化趋势符合下图的是
A.CO2(g) + 2NH3(g)=CO(NH2)2(s) + H2O(g) ΔH<0 |
B.CO2(g) + H2(g)=CO(g) + H2O(g) ΔH>0 |
C.CH3CH2OH(g)=CH2=CH2(g) + H2O(g) ΔH>0 |
D.2C6H5CH2CH3(g) + O2(g)=2C6H5CH=CH2(g) + 2H2O(g)ΔH<0 |