Chapter 18, Problem 18.75SP

Sulfur dioxide emitted from coal-fired power plants is oxidized to sulfur trioxide in the atmosphere:

   ${\text{2SO}}_{\text{2}}(g)+{\text{O}}_{\text{2}}(g)\to \text{2SO3(g)}$

By determining the sign of $\Delta {\text{S}}_{\text{total}}$ , show whether the reaction is spontaneous at 25^oC.