Chapter 12, Problem 116IP

Interpretation Introduction

Interpretation: In terms of partial pressure and in terms of molar concentration the equilibrium constant for the given reaction is to be calculated. The mole fraction of B at equilibrium is to be calculated.

Concept introduction: The equilibrium constant $K_{\text{p}}$ describes the ratio of the reactant to the product on the equilibrium conditions in terms of the partial pressure.

The equilibrium constant $K_{\text{c}}$ describes the ratio of the reactant to the product on the equilibrium conditions in terms of molar concentration.

The equilibrium constant depends upon temperature.

At equilibrium sum of all the partial pressure is equal to the total pressure.

Law of mass action is applicable on the equilibrium reactions.

Law of mass action states that at a given temperature the equilibrium constant is equal to the partial pressure of the products to the reactants raised the power of stoichiometric coefficient.

To determine: The equilibrium constants for the given reaction in terms of partial pressure and molar concentration; the mole fraction of reactant $\text{B}$ at equilibrium.