For a compound with a molecular weight of 130 g / mol, at a melting temperature of 425.15 K under 1 bar pressure, the solid and liquid phases have a density of 1100 and 1024 kg / m3, respectively. When the pressure is increased to 125 bar, the melting temperature rises to 427.45 K. Calculate the ΔSo and ΔHo values for this compound during the transition from solid to liquid phase.
For a compound with a molecular weight of 130 g / mol, at a melting temperature of 425.15 K under 1 bar pressure, the solid and liquid phases have a density of 1100 and 1024 kg / m3, respectively. When the pressure is increased to 125 bar, the melting temperature rises to 427.45 K. Calculate the ΔSo and ΔHo values for this compound during the transition from solid to liquid phase.
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter11: Intermolecular Forces And Liquids
Section: Chapter Questions
Problem 19PS
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a) For a compound with a molecular weight of 130 g / mol, at a melting temperature of 425.15 K under 1 bar pressure, the solid and liquid phases have a density of 1100 and 1024 kg / m3, respectively. When the pressure is increased to 125 bar, the melting temperature rises to 427.45 K. Calculate the ΔSo and ΔHo values for this compound during the transition from solid to liquid phase.
b) Explain why molality is preferred over molarity in applications of numerical (colligative) properties.
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