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题图的是( )
A.CO2(g) + 2NH3(g)CO(NH2)2(s) + H2O(g);△H<0 |
B.CO2(g) + H2(g)CO(g) + H2O(g);△H>0 |
C.CH3CH2OH (g)CH2=CH2(g) + H2O(g);△H>0 |
D.2C6H5CH2CH3(g) + O2(g)2 C6H5CH=CH2(g) + 2H2O(g);△H<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题图的是( )
A.CO2(g) + 2NH3(g)CO(NH2)2(s) + H2O(g);△H<0 |
B.CO2(g) + H2(g)CO(g) + H2O(g);△H>0 |
C.CH3CH2OH (g)CH2=CH2(g) + H2O(g);△H>0 |
D.2C6H5CH2CH3(g) + O2(g)2 C6H5CH=CH2(g) + 2H2O(g);△H<0 |
试题篮
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