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氯化氢溶于水的溶解热是多少
更新时间: 2020-08-20 00:00:00  

溶解热指在一定温度及压力下,通常是温度为298开尔文,压力为101千帕的标准状况,一摩尔的溶质溶解在大体积的溶剂时所发出或吸收的热量,在等压状态下,溶解热等同于焓值的变化,因此也被称为溶解焓。

在40摄氏度时,100克水可溶解63、07克氯化氢,溶解时放出大量热,1摩尔氯化氢气体的溶解热,在无限稀释时为74、852千焦。

关键词: 氯化氢 溶解 多少

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