Chapter 18.3, Problem 1PPC

Practice ProblemCONCEPTUALIZE

Consider the gas-phase reaction of ${\text{A}}_{\text{2}}\left(\text{blue}\right)\text{ and }{\text{B}}_{\text{2}}$ (orange) to form AB₃. What are the correct balanced equation and the sign of $\Delta S$ for the reaction?

$\begin{array}{l}\text{a})\\ {\text{A}}_{\text{2}}{\text{ B}}_{\text{2}}\to {\text{ AB}}_{\text{3}}\text{, negative}\\ \text{b)}\\ {\text{2A}}_{\text{2}}{\text{ + 3B}}_{\text{2}}\to {\text{ 4AB}}_{\text{3}}\text{, positive}\\ \text{c)}\\ {\text{2A}}_{\text{2}}{\text{ + 3B}}_{\text{2}}\to {\text{ 4AB}}_{\text{3}}\text{, negative}\\ \text{d})\\ {\text{A}}_{\text{2}}{\text{ + 3B}}_{\text{2}}\to {\text{ 2AB}}_{\text{3}}\text{, negative}\\ \text{e})\\ {\text{A}}_{\text{2}}{\text{ + 3B}}_{\text{2}}\to {\text{ 2AB}}_{\text{3}}\text{, positive}\end{array}$