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

Factsheet – Forklifts + Carbon Monoxide = A Potentially Deadly Combination.
www.osh.govt.nz/publications/factsheets/forklifts-co-01.html

H2S Safety Factsheet.
www.safetydirectory.com/hazardous_substances/hydrogen_sulfide/fact_sheet.htm

    Published 29 April 2014