Chapter 9, Problem 9.132CP

Ethyl chloride (C₂H₅Cl), a substance used as a topical anesthetic, is prepared by reaction of ethylene with hydrogen chloride:

${\text{C}}_{\text{2}}{\text{H}}_{\text{4}}\text{(g)}+\text{HCl(g)}\to {\text{C}}_{\text{2}}{\text{H}}_{\text{5}}\text{Cl(g)}$ $\Delta H°$ = -72.3 kJ

How much PV work is done in kilojoules, and what is the value of AE in kilojoules if 89.5 g of ethylene and 125 g of HCl are allowed to react at atmospheric pressure and the volume change is -71.5 L?