A mixture of 1.000mol of CO and 1.000mol of H2O is put in a 10.00L container at 800K, at equilibrium, 0.665mol of CO2, and 0.665mol of H2 are present. The equation: CO+H2O<->CO2+H2. What are the equilibrium concentrations of all 4 gases?

1 Answer
Al E.
Dec 11, 2017

This is another equilibrium problem, we're looking to see how the reaction proceeds, so we'll use an "ICE"ICE table. Note: be meticulous with your concentration calculations, this is a favorite area for students to make mistakes. Hence,

CO+H_2O rightleftharpoons CO_2 + H_2CO+H2O⇌CO2+H2
puu.sh

From following the stoichiometry, I carried out those calculations. There are,

[CO] = [H_2O] = 0.0335M[CO]=[H2O]=0.0335M, and
[CO_2] = [H_2] = 0.0665M[CO2]=[H2]=0.0665M

of gases within the equilibrium mixture.

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