Activity Number
81
Editable
Overview and Learning Objectives
Central Concepts
Extensions and Connections
Activity Credits
Requirements

Ion Transport in an Electric Field (interactive demo)

Interactive model, with minimal support

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This Activity Requires:

  • Java 1.5+ - Java 1.5+ is available for Windows, Linux, and Mac OS X 10.4 and greater. If you are using Mac OS X 10.3, you can download MW Version 1.3 and explore within it instead.

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Overview and Learning Objectives

In this example, there are three types of particles: one with positive charge, one with negative charge, and the third with no charge. An electric field is applied in horizontal direction pointing eastward. Periodic boundary conditions are applied in order to allow continuous flowing of the particles. The heat bath is also activated to prevent the charged particles from getting infinitely accelerated by the electric field. With this model, you can investigate, for example, the effect of temperature on the electric conductivity of an aqueous solution.

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Central Concepts

Key Concept:

The model does exhibit continuous flow of charged particles, at a cost of simple dynamic motion. This model is being revised.

Additional Related Concepts

Physics/Chemistry

  • Electromagnetic force
  • Electron
  • Ion

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Extensions and Connections

A model for research was adapted from this model by WISE and is available at http://wise.berkeley.edu. Sign in (Register, then go to Project Library, TELS, Electricity.

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Activity Credits

Created by CC Project: Molecular Workbench using Molecular Workbench

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Requirements

  • Java 1.5+ - Java 1.5+ is available for Windows, Linux, and Mac OS X 10.4 and greater. If you are using Mac OS X 10.3, you can download MW Version 1.3 and explore within it instead.

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NSF Logo
These materials are based upon work supported
by the National Science Foundation under grant numbers
9980620, ESI-0242701, EIA-0219345, DUE-0402553, and 0628181.

Any opinions, findings, and conclusions or recommendations expressed in this
material are those of the author(s) and do not necessarily reflect
the views of the National Science Foundation.