Consider the equilibrium system described by the chemical reaction below. At equilibrium, a sample of gas from the system is collected into a 4.00 L flask at 600 K. The flask is found to contain 3.86 g of PCl₅, 12.7 g of PCl₃, and 13.3 g of Cl₂. What are the values of Kc and Kp for this reaction?

Chemistry for Engineering Students
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Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter12: Chemical Equilibrium
Section: Chapter Questions
Problem 12.45PAE: The following equilibrium is established in a closed container: C(s)+O2(g)CO2(g)H=393kJmol1 How does...
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Consider the equilibrium system described by the chemical reaction below. At equilibrium, a sample of gas from the system is collected into a 4.00 L flask at 600 K. The flask is found to contain 3.86 g of PCl₅, 12.7 g of PCl₃, and 13.3 g of Cl₂. What are the values of Kc and Kp for this reaction?

Expert Solution
Step 1

The chemical equation is given as:

PCl5 (g)  PCl3 (g) +Cl2 (g) 

Given:

Volume of the flask = 4.00 L

Temperature = 600 K

Mass of PCl5 = 3.86 g

Mass of PCl3 = 12.7 g

Mass of Cl2 = 13.3 g

Also,

Molecular masses of PCl5, PCl3 and Cl2 are 208.24 g/mol, 137.33 g/mol and 70.906 g/mol respectively.

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