## Hw problem 5.35 help

Eugene Chung 3F
Posts: 142
Joined: Wed Nov 15, 2017 3:03 am

### Hw problem 5.35 help

I understand a but i don’t understand b.
Do i just approximate the partial pressure for each elements?
Also, how to i figure out the volume?
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eduardomorales5
Posts: 77
Joined: Fri Aug 30, 2019 12:15 am

### Re: Hw problem 5.35 help

To calculate the equilibrium constant, you use the ratio of the equilibrium concentrations of the products over the reactants. At equilibrium, the concentrations of A,B, and C should not change. We see that at the end of the graph. A was the reactant, while B and C were the products. The equilibrium constant is expressed as [P]/[R], so it should be A/BxC. Now just plug in the values given from the graph and you have the equilibrium constant.

Pegah Nasseri 1K
Posts: 100
Joined: Wed Feb 27, 2019 12:15 am

### Re: Hw problem 5.35 help

You don't need to know the volume because you will use the partial pressures given to you in the graph for your calculation of the equilibrium constant. The equilibrium constant is calculated by dividing the partial pressure of the products over the partial pressure of the reactant: K= (Pb)(Pc)^2 / (Pa)^2. You find the partial pressure at equilibrium by subtracting the final point on the line of the graph from the initial starting point on the line of the graph for each product and reactant.

Leila_4G
Posts: 114
Joined: Sat Sep 14, 2019 12:17 am

### Re: Hw problem 5.35 help

The final vertical pieces of data show the reaction at equilibrium, right?

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