Calculate △S fus \& △S vap for HBr. ΔSfus =TSmb.273 ΔHfus =186.042.406×103=12.93 J ΔSvep =TbΔH10.P=20619.27×07=93.54 J ΔS=12.93+93.54=106.47 Determine the entropy change when 8.50 mol HB ( 1 freezes at atmospheric pressure. −7.8×12.43=−100.857f(1) (8.50mil)(12.43)=109.90 Using the data in the table, calculate ΔSfus and ΔSvap for HBr. You have not correctly determined ΔS. The value of ΔSfus is for 1.00 molHBr. You need to scale that value up for ΔSfus= J. 8.50 molHBr. Also, consider the sign of your answer. Consider whether freezing results in an increase or decrease in entropy. ΔSvap= J. Determine the entropy change when 8.50 molHBr(l) freezes at atmospheric pressure. ΔS Incorrect Question Source: McQuarrie, Rock, And Gallogly 4 e.
