题目内容
将2mol/lSO 2和1mol/l的O 2在在密闭容器中混合并在一定条件下反应2SO 2＋O 2 
2SO 3若2后测得SO 3的浓度为0.6mol/l，则SO 2平均化学反应速率为是( )
2021-09-14
A.v(SO2)＝0.3 mol/(L·s)
B.v(SO2)＝0.15 mol/(L·s)
C.v(SO2)＝0.6 mol/(L·s)
D.v(SO2)＝0.5 mol/(L·s)
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