更新1:
I forgot to add the value of Kc which is actually 0.0420
Consider the following reaction: PCl5(g) <----> PCl3(g) + Cl2 (g)?
2018-02-12 8:27 am
The concentrations of the products at equilibrium are PCl3 = 0.250M and Cl2 = 0240M. What's the concentration of the reactant, PCl5 at equilibrium?
回答 (1)
2018-02-12 8:51 am
For this type of question, the equilibrium constant Kc must be provided.
Refer to the following question in web.
http://www.chegg.com/homework-help/questions-and-answers/equilibrium-constant-reaction-pcl5-g-pcl3-g-cl2-g-00211-certain-temperature-equilibrium-co-q1119024
Kc for the reaction is 0.0211
(Note the different values of Kc provided would lead to different answers.)
PCl₅(g) ⇌ PCl₃(g) + Cl₂(g) .... Kc = 0.0211
Kc = [PCl₃] [Cl₂] / [PCl₅]
0.0211 = 0.250 × 0.0240 / [PCl₅]
In equilibrium, [PCl₅] = 3.52 M
Refer to the following question in web.
http://www.chegg.com/homework-help/questions-and-answers/equilibrium-constant-reaction-pcl5-g-pcl3-g-cl2-g-00211-certain-temperature-equilibrium-co-q1119024
Kc for the reaction is 0.0211
(Note the different values of Kc provided would lead to different answers.)
PCl₅(g) ⇌ PCl₃(g) + Cl₂(g) .... Kc = 0.0211
Kc = [PCl₃] [Cl₂] / [PCl₅]
0.0211 = 0.250 × 0.0240 / [PCl₅]
In equilibrium, [PCl₅] = 3.52 M
收錄日期: 2021-04-18 18:04:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20180212002750AAUq84o