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    In this activity, students investigate gaseous diffusion and effusion. After completing a laboratory experiment to gain a basic understanding of diffusion and effusion, students investigate carbon monoxide and hydrogen sulfide.

    By the end of this activity, students should be able to:

    • understand the difference between diffusion and effusion
    • relate the diffusion of gases to the kinetic theory model for gases
    • link gaseous diffusion to the movement of toxic gases like carbon monoxide and hydrogen sulfide
    • provide a simple rap/poem/song to highlight the some of the dangers of poisonous gas diffusion.

    Download the Word file (see link below) for:

    • introduction/background notes
    • what you need
    • what to do.

    Useful links

    Find out from Worksafe on how forklifts and carbon monoxide can be a potentially deadly combination.

    Hydrogen Sulfide (H2S) Safety Program.

      Published 29 April 2014 Referencing Hub articles