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Helping Students Assess the Relative Importance of Different Intermolecular Interactions

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Paul G. Jasien

Department of Chemistry and Biochemistry, California State University San Marcos, San Marcos, CA 92096

J. Chem. Educ., 2008, 85 (9), p 1222

DOI: 10.1021/ed085p1222

Publication Date (Web): September 1, 2008

Section:

History, Education, and Documentation

Abstract

A semi-quantitative model has been developed to estimate the relative effects of dispersion, dipole–dipole interactions, and H-bonding on the normal boiling points (T_b) for a subset of simple organic systems. The model is based upon a statistical analysis using multiple linear regression on a series of straight-chain organic compounds. Although it is not predictive in terms of the absolute boiling points of these compounds, this model provides a framework that may be useful to instructors and students in understanding the relative boiling points of compounds. Application of this model may be useful in addressing student misconceptions related to the additivity of intermolecular interactions, which is often not emphasized sufficiently in texts.

Keywords (Audience):

First-Year Undergraduate / General

Keywords (Domain):

Physical Chemistry

Keywords (Pedagogy):

Misconceptions / Discrepant Events

Keywords (Subject):

Chemometrics

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History

Received: August 03, 2009

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Article

Helping Students Assess the Relative Importance of Different Intermolecular Interactions

Abstract

Keywords (Audience):

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Keywords (Pedagogy):

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Tools

SciFinder Links

History

Recommend & Share

Related Content

Intermolecular Interactions: Dipole–Dipole, Dipole–Induced Dipole, and London Dispersion Forces

Using Molecular Dynamics Simulation To Reinforce Student Understanding of Intermolecular Forces

Quantum Chemistry Laboratory at Home

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