Chapter 13, Problem 92E

Consider the following reaction at 298 K:

${\text{N}}_{\text{2}}{\text{O}}_{\text{4}}\left(\text{g}\right)\rightleftharpoons {\text{2NO}}_{\text{2}}\left(\text{g}\right)\text{ Kp= 0}\text{.142}$

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.