Prev. Article Next Article Table of Contents

Article

Raoult's Law: Binary Liquid-Vapor Phase Diagrams: A Simple Physical Chemistry Experiment

Citing Articles

Your current credentials do not allow retrieval of the full text.

Purchase the full-text

PDF/HTML,
figures/images,
references and tables,
(where available)

Roger W. Kugel

Department of Chemistry, St. Mary''s University of Minnesota, Winona, MN 55987

J. Chem. Educ., 1998, 75 (9), p 1125

DOI: 10.1021/ed075p1125

Publication Date (Web): September 1, 1998

Section:

History, Education, and Documentation

Abstract

A new physical chemistry laboratory experiment illustrating Raoult's law behavior of ideal solutions is described. The vapor composition of binary mixtures of a ketone and an aromatic solvent is measured spectrophotometrically and the results used to generate Raoult's law vapor pressure plots and binary liquid-vapor phase diagrams. The method is more straightforward and experimentally easier to carry out than the traditional distillation techniques. Student results are presented for ortho-xylene/acetone and ortho-xylene/methyl isobutyl ketone mixtures. Both of these solutions show slight positive deviations from Raoult's law. The results are discussed in terms of the intermolecular interactions occurring in the mixtures.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Physical Chemistry

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Instrumental Methods

View: Hi-Res PDF | PDF w/ Links

Citing Articles

View all 2 citing articles

Citation data is made available by participants in CrossRef's Cited-by Linking service. For a more comprehensive list of citations to this article, users are encouraged to perform a search in SciFinder.

This article has been cited by 2 ACS Journal articles (2 most recent appear below).

Raman Spectroscopy as the Method of Detection for Constructing a Binary Liquid–Vapor Phase Diagram
Debra J. Scardino, Austin A. Howard, Matthew D. McDowell, and Nathan I. Hammer
Journal of Chemical Education2011 Article ASAP
- Raman Spectroscopy as the Method of Detection for Constructing a Binary Liquid–Vapor Phase Diagram
  Debra J. Scardino, Austin A. Howard, Matthew D. McDowell, and Nathan I. Hammer
  Journal of Chemical Education2011 Article ASAP
  The physical chemistry laboratory is sometimes constrained to one semester, resulting in pedagogical deficiencies for the students taking the course. The use of a multidimensional laboratory exercise offers students the opportunity to encounter multiple ...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links
Modern Developments in the Physical Chemistry Laboratory
Samuel A. Abrash
2007 973 (), 115-151
- Modern Developments in the Physical Chemistry Laboratory
  Samuel A. Abrash
  2007 973 (), 115-151
  Developments in the physical chemistry laboratory since the publication of the germinal text by Schwenz and Moore (1) are categorized and reviewed. The categories examined include modern instrumentation, current topics in chemistry, integrated ...
  Abstract | Hi-Res PDF | PDF w/ Links