问答题

18.  溶液反应的速率方程为
   
   20℃反应开始时只有两反应物,其初始浓度依次为0.01mol·dm-3和0.02mol·dm-3,反应26h后,测得,求k。

A.174.24.96:6088/Latex/latex.action?latex=U197Mn1PX3s4fV57Mi19KzJNbyhDTilfezh9Xns0LX1ccmlnaHRhcnJvdyAyU09fezR9XnsyLX0r%0D%0AMk1vKENOKV97OH1eezMtfQ%3D%3D'
B.174.24.96:6088/Latex/latex.action?latex=LVxmcmFje2RjW01vKENOKV97OH1eezQtfV19e2R0fT1rYyhTX3syfU9fezh9XnsyLX0pY1tNbyhD%0D%0ATilfezh9Xns0LX1d'
C.01mol·dm-3和0.02mol·dm-3,反应26h后,测得D.174.24.96:6088/Latex/latex.action?latex=Y1tNbyhDTilfezh9Xns0LX1dPTAuMDE1NjJtb2xcY2RvdCBkbV57LTN9'
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