91. Solving a chemistry problem

91. Solving a chemistry problem

An equilibrium has been established in a closed vessel: CO2 (g.) + H2 (g.) ↔ CO (g.) + H2O (g.); the equilibrium constant is equal to one. In what volume ratios were CO2 and H2 mixed if 90% of the initial amount of hydrogen had entered into the reaction by the time equilibrium was reached?

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