反应N2+3H22NH3刚开始时，N2的浓度为3 mol/L，H2的浓度为5 mol/L，3 min后测得NH3浓度为0.6 mol/L，则此时间内，下列反应速率表示正确的是( )

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反应N₂+3H₂2NH₃刚开始时，N₂的浓度为3 mol/L，H₂的浓度为5 mol/L，3 min后测得NH₃浓度为0.6 mol/L，则此时间内，下列反应速率表示正确的是( )

A：v(NH₃)='0.2' mol/（L·s）

B：v(N₂)='1.0' mol/（L·min）

C：v(H₂)='1.67' mol/（L·min）

D：v(H₂)='0.3' mol/（L·min）

上一题下一题 0.0难度选择题更新时间:2011-02-17 10:13:51

D

A

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x	0	1	2	3	4
f（x）	a₀	a₁	a₂	a₃	a₃