Chemistry, 14.09.2019 08:30 webbjalia04
In a study of the conversion of methane to other fuels, a chemical engineer mixes gaseous methane and gaseous water in a 0.379 l flask at 1191 k. at equilibrium, the flask contains 0.145 mol of co gas, 0.218 mol of h2 gas, and 0.25 mol of methane. what is the water concentration at equilibrium (kc = 0.30 for this process at 1191 k)?
enter to 4 decimal places.
hint: look at sample problem 17.7 in the 8th ed silberberg book. write a balanced chemical equation. write the kc expression. calculate the equilibrium concentrations of all the species given (moles/liter). put values into kc expression, solve for the unknown.
Answers: 2
![K_{c}=\frac{[C]^c[D]^d}{[A]^a[B]^b}](/tpl/images/0231/1245/b6f47.png)
![K_{c}=\frac{[H_2]^3[CO]}{[CH_4][H_2O]}](/tpl/images/0231/1245/e7210.png)
   ....(1)
![[CO]=\frac{0.145mol}{0.379L}=0.383mol/L](/tpl/images/0231/1245/315b1.png)
![[H_2]=\frac{0.218mol}{0.379L}=0.575mol/L](/tpl/images/0231/1245/b555b.png)
![[CH_4]=\frac{0.25mol}{0.379L}=0.660mol/L](/tpl/images/0231/1245/35995.png)
![0.30=\frac{(0.575)^3\times 0.383}{0.660\times [H_2O]}](/tpl/images/0231/1245/8e17e.png)
![[H_2O]=\frac{(0.575)^3\times 0.383}{0.660\times 0.30}=0.3677](/tpl/images/0231/1245/f4553.png)
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In a study of the conversion of methane to other fuels, a chemical engineer mixes gaseous methane an...
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