Homework 11.67

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

Homework 11.67

Postby gracehart » Tue Nov 22, 2016 7:40 pm

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

Postby Sangita_Sub_3H » Tue Nov 22, 2016 8:59 pm

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!


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