Reactions & Rates

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Reactions & Rates kuvakaappaus  Lataa  Upota
  • Reaktio
  • Kinematiikka
  • Konsentraatio

Sisältö

  • Reaktio
  • Kinematiikka
  • Konsentraatio
  • Tasapaino

Description

Tutki mikä saa reaktion tapahtumaan törmäyttämällä atomeja ja molekyylejä. Suunnittele kokeita eri reaktioilla, konsentraatioilla ja lämpötiloissa. Koska reaktiot ovat kääntyviä? Mikä vaikuttaa reaktion nopeuteen?

Esimerkkejä oppimistavoitteista

  • Explain why and how a pinball shooter can be used to help understand ideas about reactions.
  • Describe on a microscopic level what contributes to a successful reaction (with illustrations).
  • Describe how the reaction coordinate can be used to predict whether a reaction will proceed or slow.
  • Use the potential energy diagram to determine: The activation energy for the forward and reverse reactions; The difference in energy between reactants and products; The relative potential energies of the molecules at different positions on a reaction coordinate.
  • Draw a potential energy diagram from the energies of reactants and products and activation energy.
  • Sketch how the number of reactants and products will change as a reaction proceeds.
  • Explain how they know that a system has reached equilibrium from a graph of number of reactants and products versus time.
  • Predict how raising or lowering the temperature will affect a system in the equilibrium position.
  • Describe the relative sizes of the forward and reverse rates at equilibrium.
  • Explain what effects whether the equilibrium position favors the products or the reactants.
  • Predict how addition of a reactant or product will affect the forward and reverse reaction rates, and once this new system reaches equilibrium how the reactant and product concentrations will compare to the original system at equilibrium.
  • Compare graphs of concentration vs. time to determine which represents the fastest or slowest rate.
Version 1.07

Teacher Tips

Opettajan opas (pdf) sisältää PhET-tiimin vinkkejä. ( PDF ).

Teacher-Submitted Activities

Using PhET in High School Chemistry- all my activities in pdf A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein UG-Intro
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Kotiteht
Labra
Demo
Kemia
Concept Questions for Chemistry using PhET A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein YK
UG-Intro
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MC Kemia
Reactions and Rates 4: Equilibrium LeChatlier A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein L
UG-Intro
Kotiteht
Labra
Kemia
Reactions and Rates 4 lessons (Inquiry Based) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein UG-Intro
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Demo
Kotiteht
Kysymykset
Labra
Kemia
Salts and Solubility 5 Activities in pdf A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein UG-Intro
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Muu Kemia
Maantiede
Reactions and Rates 3: Introduction to Equilibrium (Inquiry Based) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein UG-Intro
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Labra
Kysymykset
Kotiteht
Kemia
Reactions and Rates 2: Intro to Kinetics (inquiry based) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein UG-Intro
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Kotiteht
Kysymykset
Labra
Kemia
Reactions and Rates College version for tab 3- kinetics (Inquiry Based) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein UG-Adv Labra Kemia
Reactions and Rates 1 Introduction to reactions (Inquiry Based) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein UG-Intro
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Kysymykset
Labra
Demo
Kemia
Exploring Equilibrium 2 (Le Chatelier's Principle) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Amy Jordan L Labra Kemia
Exploring Equilibrium A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Amy Jordan L Labra Kemia
Kinetics Guided Inquiry A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Chris Dewberry UG-Intro Kotiteht
Muu
Labra
Kysymykset
Reaction Rates A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Emily Firchau L Labra Kemia
PhET Sims Aligned to the Chemistry Curriculum This contribution was designed by PhET. Julia Chamberlain UG-Intro
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Muu Kemia
Alignment of PhET sims with NGSS This contribution was designed by PhET. Trish Loeblein L Muu Maantiede
Biologia
Kemia
Fysiikka
How do PhET simulations fit in my middle school program? This contribution was designed by PhET. Sarah Borenstein YK Muu Kemia
Fysiikka
Maantiede
Biologia
Reactions and Rates: Learning Goals from the design team (Inquiry Based) This contribution was designed by PhET. Trish Loeblein, Linda Koch UG-Adv
UG-Intro
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Muu Kemia
MS and HS TEK to Sim Alignment Elyse Zimmer YK
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Muu Kemia
Fysiikka
Biologia
Understanding Rates of Reactions Lauren Petersen YK
UG-Intro
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Guided
Kotiteht
Labra
Kemia
Reactions and Rates Jefferson County Middle School Workshop YK Labra Kemia
LeChateilier's Principle - Concentration Robert Strauss L Labra
반응과 반응속도 SIM 사용지침서 이화국(Wha Kuk Lee) L
UG-Intro
Labra
Demo
Muu
Kemia
Biologia

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Suunnitteluryhmä Kolmannen osapuolen kirjastot Kiitokset
  • Linda Koch (lead)
  • Ron LeMaster (developer)
  • Trish Loeblein
  • Kathy Perkins
  • Interviewer: Mindy Gratny