Chapter 18, Problem 18.89QP

For the reaction

${\text{CH}}_3\text{OH}(l)+\frac{3}{2}{\text{O}}_2(g)\stackrel{}{\to }2{\text{H}}_2\text{O}(l)+{\text{CO}}_2(g)$

the value of ΔG° is −702.2 kJ at 25°C. Other data are as follows:

	$\Delta H_f^{°}$ (kJ/mol) at 25°C	S° (J/mol·K) at 25°C
CH3OH(l)	−238.7	126.8
H2O(l)	−285.8	70.0
CO2(g)	−393.5	213.7

Calculate the standard entropy, S°, per mole of O₂(g).