Chemistry > Lab Experiment > Boone High School SCIENCE 1020 2.1.8 Lab-VERIFIED BY EXPERTS 2021-GRADED A (All)

Boone High School SCIENCE 1020 2.1.8 Lab-VERIFIED BY EXPERTS 2021-GRADED A

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2.1.8 Lab 11: The Effects of Temperature and Particle Size Lab Assignment AP Chemistry Sem 2 Name: ________________________ Points Possible: 50 Date: _____________ Adapted from: Kinetics Guided Inq ... uiry, Chris Dewberry. https://phet.colorado.edu/en/contributions/view/4049 DIRECTIONS: Background Four major things affect the rate of a reaction: Concentration: More molecules = more collisions Collisions are necessary for reactions Physical State: Ability to mix reactants Solids can be grinded to increase surface area Liquids can be stirred Temperature: Increases the kinetic energy of molecules Need sufficient energy to react (Activation Energy) Catalysts: Typically lower the activation energy of reactions Procedure ***For the majority of this guided inquiry we are going to use a simulation program written by Linda Koch, Ron LeMaster, Trish Loeblein, and Kathy Perkins. The program can be found by following this link: https://phet.colorado.edu/en/simulation/reactions-and-rates Single Collision 1. Pull back the knob. Describe what happened in 2-3 sentences. (3 points) 2. Click the “Reload Launcher” button and expand the two windows on the right side of the program by clicking the “+” button for the Separation View and the Energy View. Now release the knob from various distances. Indicate on the potential energy diagram when the reaction proceeds forward. (2 points) When the total energy is equal or greater than the peak at which there is the greatest amount of potential energy is when the reaction proceeds forward [Show More]

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