A set of vapour pressures were measured at different temperatures for a particular substance. A plot of ln(P) vs 1/T gave a straight line with a slope of -4.65×10^3 (K) and an intercept of 6.75. Calculate the enthalpy of vaporization for this substance in units of kJ mol-1

A set of vapour pressures were measured at different temperatures for a particular substance. A plot of ln(P) vs 1/T gave a straight line with a slope of -4.65×10^3 (K) and an intercept of 6.75. Calculate the enthalpy of vaporization for this substance in units of kJ mol-1

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter9: Liquids, Solids, And Materials

Section: Chapter Questions

Problem 5QRT

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Question

A set of vapour pressures were measured at different temperatures for a particular substance.
A plot of ln(P) vs 1/T gave a straight line with a slope of -4.65×10^3
(K) and an intercept of 6.75.
Calculate the enthalpy of vaporization for this substance in units of kJ mol-1

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