试题与答案

通常把萝卜腌成咸菜需要几十天，而把萝卜炒成熟菜，使之有相同的咸味，只需几分钟，造

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题型：选择题

题目：

通常把萝卜腌成咸菜需要几十天，而把萝卜炒成熟菜，使之有相同的咸味，只需几分钟，造成这种差别的主要原因是

A．盐的分子很小，容易进入萝卜中

B．盐分子间有相互作用的斥力

C．萝卜分子间有空隙，易扩散

D．炒菜时温度高，分子热运动剧烈

答案：

答案：D

温度越高分子运动越剧烈

考点：分子动理论
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