Note: You must install Adobe Shockwave Player and Quicktime onto your computer in order to view these videos and tutorials. They are available for free online at http://www.adobe.com/products/shockwaveplayer.html & https://support.apple.com/downloads/quicktime). Google Chrome browser does NOT work for the Pearson links; please use Mozilla Firefox in this case.
In the following activity, you will be working with an equilibrium simulation activity and completing the questions on the lab activity below.
When a reversible reaction reaches equilibrium, the amount or concentration of products and reactants level off due to the fact that the forward reaction changes reactants into products at the same rate that the reverse reaction changes products into reactants.
When a system at equilibrium is stressed, the chemicals in the closed system respond to the stress and make either more products or reactants. Once again, the concentrations will level off and a new equilibrium with different concentrations will be established.
The term shift simply indicates the direction (forward or reverse) of a reaction that increases in rate when a stress is applied. For example, if a reaction shifts to the right as a result of a stress being applied, the forward reaction rate increases and the concentration of the products increase. Logically, the concentration of the reactants must decrease.
What are we doing in the following exercise?
In this activity, your job is to examine how stress (temperature, pressure, and concentration) causes a system at equilibrium to shift and establish a new equilibrium.
You should hypothesize about which direction the equilibrium will shift after you apply the stress.
Keep careful track of whatâ€™s going on so that you can look back and discuss what happened.
In this video, Paul Andersen defines the rate of a reaction as the number of reactants that are consumed during a given period of time. The rate of the reaction can be affected by the type of reaction as well as the concentration, pressure, temperature and surface area. Be sure to watch the entire video to watch his discussion of the PhET video you will be working with in this case assignment.
Rate of Reactions. Bozeman Science. Accessed at https://www.youtube.com/watch?v=6mAqX31RRJU on June 8, 2017.
Learn more about Le Chatelier’s Principle in the following video:
Le Chatelier’s Principle. FuseSchool. Accessed at https://www.youtube.com/watch?v=7zuUV455zFs on June 8, 2017.
For this Case study, you will be completing the word doc assignment below on Equilibrium. Complete the interactive simulation (link provided in document) then answer the questions contained in the word document below.
Once you have completed the answers contained with the Equilibrium assignment below, save the word document and upload the final version to the Case Assignment dropbox area of Module 3.