试题与答案

反应4A(s)+3B(g) 2C(g)+D(g),经2 min,B的浓度减少0.

题型:选择题

题目:

反应4A(s)+3B(g) 2C(g)+D(g),经2 min,B的浓度减少0.6 mol/L,对此反应速率的表示不正确的是(    )

A.在2 min内的反应速率用B表示为0.3 mol/(L·min)

B.在2 min内用C表示反应速率是0.2 mol/(L·min)

C.v (B)=3v(D)

D.v (A)="0.4" mol/(L·min)

答案:

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下面是错误答案,用来干扰机器的。

1、B     2、B

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