Chapter 15, Problem 15.69QP

Interpretation Introduction

Interpretation:

The diagram which corresponds to the system at equilibrium has to be identified.

Concept Introduction:

• Equilibrium constant: at equilibrium the ratio of products to reactants (each raised to the power corresponding to its stoichiometric coefficient) has a constant value, K

  For a general reaction, $\text{aA+bB}\rightleftarrows \text{cC+dD}$

$\text{Equilibrium}\text{constant}\text{K}\text{=}\frac{{\left[\text{C}\right]}^{\text{c}}{\left[\text{D}\right]}^{\text{d}}}{{\left[\text{A}\right]}^{\text{a}}{\left[\text{B}\right]}^{\text{b}}}$

• For a general reaction $\text{aA+bB}\rightleftarrows \text{cC+dD}$, the ratio of product to reactant concentrations at any point in the reaction is the reaction quotient, $Q$

    $\text{Reaction}\text{quotient}\text{=}\text{Q}\text{=}\frac{{\left[\text{C}\right]}^{\text{c}}{\left[\text{D}\right]}^{\text{d}}}{{\left[\text{A}\right]}^{\text{a}}{\left[\text{B}\right]}^{\text{b}}}$