Science is Fun
Science Is Fun: Floating Soap Bubbles
In this experiment you learn how to generate carbon dioxide inside a container, and float soap bubbles above the gas. Once the bubbles are suspended, it is possible to observe them closely, which is normally very difficult to do....
Simon Fraser University
Chem1 Virtual Textbook: Effusion and Graham's Law
The General Chemistry Virtual Textbook, or Chem 1, is broken into several sections covering various aspects of topics related to chemistry. This section deals with both effusion and its relation to Graham's law.