Chapter 18, Problem 18.74SP

In lightning storms, oxygen is converted to ozone:
   ${\text{3O}}_{\text{2}}(g)\to {\text{2O}}_{\text{3}}(g)$
By determining the sign of $\Delta {\text{S}}_{\text{total}}$ show whether the reaction is spontaneous at ${\text{25}}^{\text{o}}\text{C}$ .