Law of Chemical Equilibrium and LeChatelier\'s Principle Pre-Lab Questions 1. Fo

Question

Law of Chemical Equilibrium and LeChatelier's Principle Pre-Lab Questions 1. For the reaction PCI_3(g) PCI_3(g) at 25degreeC the equilibrium concentrations were as follows: [PCI_3] = 7.2 M, [PCI_5] = 0.050 M, and [CI_2] = 7.2 M. Calculate the equilibrium constant for the reaction. 2. The dissociation of H1 to H_2 and I_2 is endothermic. If the reaction is at equilibrium predict in which direction the equilibrium shifts, right toward H_2 and I_2 or left toward H1, when the following stresses are applied. 2 H1(g) H_2(g) + I_2(g)

Explanation / Answer

Solution :-

PCl3 + Cl2 ------ > PCl5

Equilibrium concentrations

[PCl3] = 7.2 M

[Cl2]= 7.2 M

[PCl5]= 0.05 M

Equilibrium constant equation is as follows

Kc= [PCl5] / [PCl3][Cl2]

Kc=[0.05] / [7.2][7.2]

Kc= 9.65*10^-4

So the equilibrium constant for the reaction 9.65*10^-4

Related Questions

Navigate

• Browse (All)
• Browse L
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.