Question

Clausius-Clapeyron Equation Consider the following equation (cf p 689, Sec. 16.10 in Zumdahl, "Chemical Principles", 8th edn.; Eqn 16.4): In(Pvap) = -[(AHvap)/(R)]([ 1/(11) +C (Note that Prep is the vapour pressure in atm.) The following graph was obtained for a pure volatile liquid substance. In(Pvap) 0.002 0.003 1/T (K) Determine the enthalpy of vaporization for this substance. AHvap = in Incorrect Tries 4/5 Previous Trips

Answer 1

Solutions Accouding to ean. Dop, In P2 = – ArvaPT 1 - 1 7 lol = 1 , . - .003. en Por = 6 - - .002. - 6 = – Atual ·003-6002] 5 = 0001] 7 Arnal 8.314 5x8.314 - Akvap Alhap 41.57 kJ/mol Answer,