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13问答网 > 为什么沸点与气压有关？水的沸点跟气压有什么关系？

为什么沸点与气压有关？水的沸点跟气压有什么关系？

2025-03-15 18:37:24

推荐回答（3个）

回答1：

气压低，沸点低，气压高，沸点高。比如说标准大气圧下，水的沸点是100摄氏度，那么气压低，水的沸点就达不到100摄氏度，反之就高。

回答2：

气压越高，沸点越高；气压越低，沸点越低。海拔每高1000米，沸点下降6度，海拔之下每深1000米，沸点升高3度。

回答3：

沸腾是由于蒸汽压＝外环境气压，

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