A Complete Collection of 100000 Whys
Fav十万个为什么
为什么有些化学反应发生得快，有些慢？
1、反应物的浓度：反应物浓度越高，分子碰撞频率越高，反应速度越快。
2、温度：温度越高，分子动能越大，碰撞频率和能量增加，反应速度越快。
3、催化剂：催化剂可以降低反应的活化能，使反应更容易发生，从而加快反应速度。
4、反应物的性质：不同物质的化学键强度和结构不同，导致反应难易程度不同，影响反应速度。
5、反应物的接触面积：反应物接触面积越大，碰撞机会越多，反应速度越快。
总之，化学反应的快慢受多种因素影响，包括反应物的浓度、温度、催化剂、性质和接触面积等，这些因素共同决定了反应的速率。
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