天气预报15天查询> 其他> 为什么氢氟酸电离后放热

为什么氢氟酸电离后放热

更新时间: 2020-10-09 00:00:00     

氢氟酸在溶于水的时候,先解离成氢离子和氟离子,这个过程需要吸收热量,氢离子和氟离子在水溶液中以水合离子形式存在,水合是放热过程,离子半径极大或极小时,水合热很大,氟离子半径很小,所以溶解时水和热很大,甚至超过了解离时吸收的能量。

关键词: 为什么 氢氟酸 电离 放热

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-1601292/ | 耗时:0.4200 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=1601292 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1601292 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1601292 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(2560428,1974924,2379194,824905,2293540,1541573,2056367,1661701,1875192,117397,1337279,1851218,2541440,1696448,2588879,1087313,1377313,2520803,1117766,1101629,1291978,2113161,451491,2137395,1084459,2221825,1070488,1471453,490417,2487564) ORDER BY field (ArticleID,2560428,1974924,2379194,824905,2293540,1541573,2056367,1661701,1875192,117397,1337279,1851218,2541440,1696448,2588879,1087313,1377313,2520803,1117766,1101629,1291978,2113161,451491,2137395,1084459,2221825,1070488,1471453,490417,2487564)