The Chemical Educator

, Volume 6, Issue 6, pp 360–361 | Cite as

Illustrating Chemical Concepts with Coin Flipping

  • Raymond Chang
  • John W. ThomanJr.Email author
Laboratories and Demonstrations


Three classroom demonstrations, which involve the participation of students flipping coins, are described. The half-life of a first-order chemical reaction is illustrated by standing students sitting down when they flip a “tails.” Dynamic chemical equilibrium is illustrated by students standing or sitting depending on the outcome of coin-flips. In a third demonstration, the motion of gas molecules from one bulb to another is governed by the flip of a coin, showing the improbability of all the molecules gathering in just one bulb.

Copyright information

© Springer-Verlag New York, Inc. 2001

Authors and Affiliations

  1. 1.Department of ChemistryWilliams CollegeWilliamstown

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