Question

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?

Answer 1

This is another equilibrium problem, we're looking to see how the reaction proceeds, so we'll use an `"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_2`

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

`[CO] = [H_2O] = 0.0335M`, and
`[CO_2] = [H_2] = 0.0665M`

of gases within the equilibrium mixture.