Chapter 18, Problem 31E

Calculate the change in entropy that occurs in the system when 1.00 moIe of ¡sopropyl alcohol (C₃H₈O) melts at its melting point (—89.5°C). See Table 11.9for heats of fusion.

Table 11.9 Heats of Fusion of Several Substances

Liquid	Chemical Formula	Melting Point (°C)	$\Delta H_{\text{fus}}(\text{kJ}/\text{mol})$
Water	H2O	0.00	6.02
Rubbing alcohol(isopropyl alcohol)	C3H8O	−89.5	5.37
Acetone	C3H6O	−94.8	5.69
Diethyl ether	C4H10O	−116.3	7.27