## 11.79

Omer Lavian 2K
Posts: 44
Joined: Wed Sep 21, 2016 2:57 pm

### 11.79

A reactor for the production of ammonia by the Haber
process is found to be at equilibrium with PN2 " 3.11 bar,
PH2 " 1.64 bar, and PNH3 " 23.72 bar. If the partial pressure
of N2 is increased by 1.57 bar, what will be the partial pressure
of each gas once equilibrium is re-established?

The solution involves solving a cubic equation to find equilibrium partial pressures. I know the quadratic equation is a must, but are cubic equations fair game for the final?

Chem_Mod
Posts: 18400
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 435 times

### Re: 11.79

You are not responsible for cubic equations as they are more difficult to solve. However, for your own learning purposes, you can use a graphing calculator for this problem and use the graphing function to find intercepts that will be possible values of x

Jessica Huang 1M
Posts: 26
Joined: Wed Sep 21, 2016 2:59 pm

### Re: 11.79

I don't think so. To solve that problem, you would need a graphing calculator and we are only allowed scientific calculators.