选择题 对于化学反应3W(g)+2X(g)＝4Y(g)+3Z(g)，下列反应速率关系中，正确的是
A．![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(W)＝3![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(Z) | B．2![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(X)＝3![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(Z)
| C．2![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(X)＝![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(Y) | D．3![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(W)＝2![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(X)
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选择题 对于化学反应3W(g)+2X(g)＝4Y(g)+3Z(g)，下列反应速率关系中，正确的是
| A．![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(W)＝3![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(Z) | B．2![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(X)＝3![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(Z)
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C．2![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(X)＝![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(Y) | D．3![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(W)＝2![]() 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/tkcmssjsw41.png\" style=\"vertical-align:middle;\">(X)
本题答案：C
本 题解析：
试题分析：化学反应速率之比等于反应方程式化学计量数之比。VW：VX：VY：VZ =3：2：4：3。故选择C选项。
考点：化学反应速率表示方法
本题所属考点：【化学反应速率】
本题难易程度：【一般】
What is learned in the cradle is carried to the grave. 孩提时代学到的东西,到老死也不会忘记.
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