Chapter 16, Problem 45E

Consider the following reaction at 298 K:

${\text{N}}_2{\text{O}}_4\left(g\right)\rightleftharpoons 2{\text{NO}}_2\left(g\right)$ $K_P=0.142$

What is the standard free energy Change at this temperature? Describe what happens to the initial system. where the reactants and products are in standard states, as it approaches equilibrium.