Chapter 18.6, Problem 1PPA

Practice ProblemATTEMPT

Calculate the standard free-energy changes for the following reactions at $\text{25°C:}$

$\begin{array}{l}\text{(a)}\\ {\text{H}}_2(g){\text{ + Br}}_{\text{2}}\text{(}l\text{) }\to \text{ 2HBr(}g\text{)}\\ \text{(b)}\\ 2{\text{C}}_{\text{2}}{\text{H}}_{\text{6}}(g){\text{ + 7O}}_{\text{2}}\text{(}g\text{) }\to {\text{ 4CO}}_{\text{2}}\text{(}g{\text{) + 6H}}_{\text{2}}\text{O(}l\text{)}\end{array}$