The Equilibrium Simulator illustrates visually, using colored molecules for both reactants A and B and products C and D, the process of a reaction moving towards equilibrium. Included are four experiments which utilize four variations of the simulation. The simulation allows different equations of the form A + B = C + D and different concentrations of reactants and products at the start of the reaction. In the experiments, students derive the equilibrium constant equation and Le Chatelier’s Principles for concentration, temperature, and pressure. Answer keys are provided for each experiment.
The simulations could be used as a tool for further student experimentation. In one of the simulations, students can watch the equilibrium equation concentrations change as equilibrium is achieved.
The following materials are included:
Equilibrium Simulator (EquilibriumSimulator.exe)
Lab 1 - Determination of Equilibrium Constant (equil_lab1.doc)
Lab 2 – Changes in Concentration (equil_lab2.doc)
Lab 3 – Changes in Temperature (equil_lab3.doc)
Lab 4 – Changes in Pressure (equil_lab4.doc)
Lab 1 thru Lab 4 Answer Keys (equi_lab1_answer.doc, etc.)
Instructors Notes (notes.doc)
HS-PS1-6. Refine the design of a chemical system by specifying a change in conditions that would produce increased amounts of products at equilibrium.* [Clarification Statement: Emphasis is on the application of Le Chatelier’s Principle and on refining designs of chemical reaction systems, including descriptions of the connection between changes made at the macroscopic level and what happens at the molecular level.
System Requirements: PC with Windows XP or later
The software is downloaded as a zip file. Unzip all of the files into a directory and double click on the exe file to start the simulation.
Please e-mail firstname.lastname@example.org if you have any questions.
Lab 1 – Determination of Equilibrium
Investigate how various reactions reach equilibrium and determine the mathematical relationships between the product and reactant concentrations.
Lab 2 – Changes in Concentration
Investigate how changes in the concentration of one reactant or product changes the concentrations of the reactants and products at equilibrium.
Lab 3 – Changes in Temperature
Investigate how changes in temperature affect the equilibrium of exothermic and endothermic reactions.
Lab 4 – Changes in Pressure
Investigate how changes in pressure affect the equilibrium of a reaction.
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Purchaser may install software on one computer at school, one computer at home, and 10 or less in their classroom for use by purchaser and their students only. By buying a second license, purchaser may install software on one computer at home, one computer at school, and all computers in their classroom for use by purchaser and their students only. For computer lab installation or school site licenses, please contact Multimedia Science at email@example.com
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equilibrium, chemistry, La Chatalier's principle, concentration, temperature, pressure, experiment, lab, simulation, software