Intermolecular Forces

The Sirens of Science

Jane Funderburk Becky Hinnefeld Pam Kahn

Intermolecular Forces

Jane FunderburkArchbishop Williams H.S.jfundrburk@aol.com

Pam KahnCranston West H.S.prk@ids.net

Rebecca HinnefeldOakwood H.S.Rhinnefeld@cinci.rr.com

Intermolecular Forces

Intermolecular Forces The interplay of attractive and

repulsive forces between gas particles dictates macroscopic particle behavior

Intermolecular Forces

There is no ‘wet lab’ that allows students to observe the effect of intermolecular forces on particles.

Therefore teachers introduce intermolecular forces by using direct instruction supplemented with charts and graphs.

Intermolecular Forces

Simulab 12 provides a hands on activity that allows students to see the interplay of intermolecular forces, particle behavior and energy changes as a function of varying particle distance.

The optional extension allows students to explore the effects of changing system temperature.

Intermolecular Forces

Intended AudienceSecondary science courses that cover

matter: Chemistry Physical Science

Intermolecular Forces

Adjustments/Adaptations General Chemistry

None needed

Higher level Chemistry Extension activity

Physical ScienceNone needed

Intermolecular Forces

Placement in the Curriculum Chemistry

Bonding States of Matter

Gas Laws

Physical ScienceForcesBonding

Intermolecular Forces

This unit meets some of the standards recommended by the National Science Foundation Science Content Standards A and B

Intermolecular Forces

This unit also meets many of the Rhode Island standards formulated

by the National Center for Education and the Economy

Intermolecular Forces

Time Simple Molecular Dynamics Feature

Tour – 1 class period (50 mins) PreLab Discussion – 1 class period Simulab 12 - 1 class period PostLab Discussions - 1 class period

Intermolecular Forces

Electronic Equipment 1 computer/2 students – Preferred

or Teacher Computer Demonstration VMDL software and Simulab files

Other Resources Student Copy of Simulab 12 Class Textbook

Intermolecular Forces

Goals To recognize the forces that act

between particles of a substance To relate these forces to the

macroscopic behavior of a substance

Intermolecular Forces

ObjectivesStudents will Compare and contrast the forces that determine

the movement of atoms relative to each other Determine how forces acting between particles

depend on the distance between the two particles Explain the relationship between kinetic and

potential energies in a system Interpret the law of conservation of energy in

terms of potential, kinetic, and total energies

Intermolecular Forces

Instructional Activity

Simulab 12

Intermolecular Forces

Assessment

Short term – questions in Simulab

Long term – lab report, unit test