Chapter 12, Problem 99CP

Interpretation Introduction

Interpretation: A given mass of a sample of methane gas and gas oxygen is given to be present sealed in a $2.50\text{L}$ vessel at $411°\text{C}$. These are allowed to reach the equilibrium state. The equilibrium pressure of oxygen and water vapor is given, the equilibrium pressures of carbon monoxide and carbon dioxide are to be calculated.

Concept introduction: The state when the reactants involved in a chemical reaction and the products formed in the reaction exist in concentrations having no further tendency to change is known as an equilibrium state of the reaction.

To determine: The equilibrium pressures of carbon monoxide and carbon dioxide.

The number of moles of oxygen gas present initially is $\underset{\_}{0.2mol}$.