題目
For a certain process, at 300k, ΔG=-10KJ and ΔH=-7KJ. If
the process is carried out so that no useful work is performed
,ΔG is
1.+10 kJ
2.+7 KJ
3.0 KJ
4.-7KJ
5.-10KJ
希望為的人解一下,謝謝
普通化學 有關熱力學
2009-07-12 7:42 pm
回答 (2)
2009-07-14 1:02 am
✔ 最佳答案
安安 你參考一下當定溫下（constant temperature）
△G＝△H－T△S 如題反應過程已完成（the process is carried out）
表示已達到平衡則△G＝0 kJ（Neither the forward nor the reverse reaction prevails (Equilibrium)）
此時δW＝pdV＝0（the work done by the system in a reversible process）
△H＝T△S＝-7kJ
因此 答案應為 3. △G＝0 kJ
2009-07-13 1:20 am
In the question, ΔG of the process -10 kJ.
Therefore, the answer is ΔG = -10 kJ
Therefore, the answer is ΔG = -10 kJ
收錄日期: 2021-04-30 12:57:25
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090712000010KK03201