作者garytajen (gary)
看板TransBioChem
标题[化学] 一题热力学求解
时间Tue Apr 26 00:04:31 2016
Ammonium nitrate product-favpredly dissolves in water at room temperature and
the process causes the solition to become quite cold
Which of the following is not true about the dissolution of ammonium nitrate?
(A)the process is exothermic
(B)the solubility will be greater in warm water
(C)delta S for the reaction is negative
(D)all solution of ammonium nitrate are supersaturated
答案是A,我也觉得C也错耶大家觉得呢
我的想法:Product-favoredly→自发→S>0
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※ 编辑: garytajen (114.136.176.180), 04/27/2016 02:42:39
1F:→ BiGiLa: 你之前是不是化合物打错04/27 21:49
2F:→ BiGiLa: 自发是delta G<0 定义看清楚就没问题了04/27 21:50
3F:→ garytajen: 是呀之前字打错被发现了哈哈04/27 22:42
4F:→ garytajen: delta G=H-TS 答案表示delta S是负的04/27 22:42
5F:→ garytajen: (+)-(+)(-)→delta G如果照答案那是>004/27 22:42
6F:→ BiGiLa: 看到那句就直接否定你真不好意思 原来你有推过04/28 09:25
7F:→ BiGiLa: 我仔细看完 应该是ACD叙述错 B叙述正确04/28 09:28
※ 编辑: garytajen (114.136.166.60), 04/29/2016 01:26:55
8F:→ begolong: 只有B是对的其他选项都错 04/29 23:40
9F:→ garytajen: 谢谢BiGiLa和begolong两位大大~ 04/30 02:44