write a lab report for Reaction Kinetics II— The Determination of an Activation Energy

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write a lab report for Reaction Kinetics II— The Determination of an Activation Energy



CHEM218 Lab Manual 2019-21 Chemistry 218 Chemical Principles II Laboratory Manual 2019-21 Course Team Authors and Coordinators: Lawton Shaw, Robert Carmichael, and Dietmar Kennepohl Editor: Erna Dominey Lab Instructors Present &(Past): Jim Robinson, Melissa Gajewski, Jim Nieman, Nina Vo, Ross Witherell, Jason Norman, James Sochan, Haley Carlson, Umme Salma, Rob Carmichael (Scott McGavin, Matthew Noestheden, Igor Sinelnikov, Sam Monthana, Donna Gulcev, Vickie Russell, Darlene Rising, Klaus Thompson, Nyron Jaleel, Roberta Franchuk, Yuchiong Hsuanyu) Lab Manual Illustrations: Ian Grivois and Robert Carmichael Lab Manual Photography: Robert Carmichael and Blaise MacMullin Senior Laboratory Manager: Rafael Hakobyan Past Laboratory Manager: Elaine Goth-Birkigt Every effort has been taken to ensure that these materials comply with the requirements of copyright clearances and appropriate credits. Athabasca University will attempt to incorporate in future printings any corrections which are communicated to it. Athabasca University students have permission to print a copy of this manual at private printing services. © Athabasca University 2018, 2019 Printed in Canada SLID 060619 Contents General Information .......................................................................................... 1 Introduction ......................................................................................................... 3 Organization ........................................................................................................ 4 Materials to be Provided by the Student .......................................................... 5 Evaluation of Students’ Work ............................................................................. 6 Writing Laboratory Reports ............................................................................... 7 Laboratory Academic Conduct ........................................................................ 18 Safety General .................................................................................................... 22 Safety Rules .................................................................................................... 23 Some General Advice Regarding Laboratory Work ................................. 26 Medical Information Form ........................................................................... 28 Chemistry Laboratory Accident Form ........................................................ 29 WHMIS ............................................................................................................. 30 Hazard Symbols ............................................................................................ 31 Safety Exercise ............................................................................................... 32 Common Apparatus ......................................................................................... 33 Checklist of Equipment Contained in Each Student Kit .............................. 37 Experiments ....................................................................................................... 39 Block D Experiments ......................................................................................... 41 Experiment D1: Reaction Kinetics I— Experiment D1: The Determination of a Rate Law ................................... 43 Experiment D2: Reaction Kinetics II— Experiment D2: The Determination of an Activation Energy ................. 57 Experiment D3: The Determination of an Equilibrium Constant† .......... 65 Experiment D4: Le Châtelier’s Principle .................................................... 77 Experiment D5: Titration Curves ................................................................ 85 Block E Experiments ......................................................................................... 93 Experiment E1: Voltaic Cells ........................................................................ 95 Experiment E2: The Determination of a Molar Mass by Electrolysis† .. 103 Block F Experiment ......................................................................................... 111 Experiment F1: The Preparation of Acetylsalicylic Acid (Aspirin)† .. 113 Appendix ..........................
Answered 1 days AfterApr 05, 2024

Answer To: write a lab report for Reaction Kinetics II— The Determination of an Activation Energy

Dr Shweta answered on Apr 06 2024
9 Votes
1. Purpose of the experiment:
Chemical reactions normally exhibit higher reaction rates as temperature is raised, a
s reaction rates typically increase with a rise in temperature. As the temperature rises, the average kinetic energy of the molecules also increases. For two molecules to undergo a reaction, they need to collide with an energy level that is at least as high as the activation energy threshold. The likelihood of two reactant molecules impacting with enough energy for a reaction to happen and be transformed into products increases as the average kinetic energy of the molecules increases.
The activation energy, Ea, of a reaction is the energy difference between the reactants and the transition state (or activated complex). In 1889, Svante Arrhenius initially established the correlation between the rate (rate constant) of a specific process and the absolute temperature. The accepted name for this relationship is commonly referred to as the Arrhenius equation:
k = Ae-Ea/RT
where k is the rate constant, A is a probability factor, Ea is the activation energy, R is the universal gas constant, and T is the absolute temperature.
If we take logs (to...
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