## Homework 11.67

gracehart
Posts: 22
Joined: Sat Jul 09, 2016 3:00 am

### Homework 11.67

11.67: The reaction 2HCL (g) <---> H2 (g) + Cl2 (g) has K=3.2 x 10-34 at 298K. The initial partial pressures are H2, 1.0 bar; HCl, 2.0 bar; and Cl2, 3.0 bar. At equilibrium there is 1.0 mol H2 (g). What is the volume of the container?

Could you please explain how to solve this? Thanks!

Sangita_Sub_3H
Posts: 23
Joined: Sat Jul 09, 2016 3:00 am

### Re: Homework 11.67

Hello! So, you are given the initial pressures for each of the elements in the reaction. Using these initial values, you need to set up an ICE chart to find the x values within the equilibrium pressures of each element. In order to find x, you set the K value (given) equal to the expression of K with the x values inside of them. After solving for x, which will be your equilibrium pressure, you will then use PV=nRT to solve for volume. Rearranging the equation to V=(nRT)/P, you will be able to solve for the volume of the container.

Hope this helps!