Reações & taxas

Reações & taxas Captura de Ecrã  Descarregar  Incorporar
  • Reação
  • Cinemática
  • Concentração
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Tópicos

  • Reação
  • Cinemática
  • Concentração
  • Equilíbrio

Descrição

Explore what makes a reaction happen by colliding atoms and molecules. Design experiments with different reactions, concentrations, and temperatures. When are reactions reversible? What affects the rate of a reaction?

Amostra das Metas de Aprendizagem

  • 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.
Versão 1.07

Dicas para Professores

Descarregar dicas para professores PDF Revisão dos controlos das simulações, simplificação dos modelos, e instropeção ao pensamento do aluno ( PDF ).

Atividades Submetidas por Professores

Concept questions for Physics using PhET (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 Univ-Intro
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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 Univ-Intro
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Demo
Lab
TPC
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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 Básico
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Univ-Intro
MC Química
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 Secundário
Univ-Intro
TPC
Lab
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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 Secundário
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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 Univ-Intro
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Outro Ciências Naturais
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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 Univ-Intro
Secundário
TPC
Lab
CCs
Química
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 Secundário
Univ-Intro
Lab
TPC
CCs
Química
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 Univ-Avan Lab Química
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 Univ-Intro
Secundário
Lab
Demo
CCs
Química
Exploring Equilibrium 2 (Le Chatelier's Principle) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Amy Jordan Secundário Lab Química
Exploring Equilibrium A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Amy Jordan Secundário Lab Química
Kinetics Guided Inquiry A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Chris Dewberry Univ-Intro TPC
Lab
CCs
Outro
Reaction Rates A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Emily Firchau Secundário Lab Química
PREPARATORIA: Alineación de PhET con programas de la DGB México (2017) This contribution was designed by PhET. Diana López Secundário
Univ-Intro
Outro Química
Física
Matemática
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Biologia
Ciências Naturais
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Ciências Naturais
Física
PhET Sims Aligned to the Chemistry Curriculum This contribution was designed by PhET. Julia Chamberlain Secundário
Univ-Intro
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Reactions and Rates: Learning Goals from the design team (Inquiry Based) This contribution was designed by PhET. Trish Loeblein, Linda Koch Secundário
Univ-Avan
Univ-Intro
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반응과 반응속도 SIM 사용지침서 이화국(Wha Kuk Lee) Univ-Intro
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Demo
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MS and HS TEK to Sim Alignment Elyse Zimmer Secundário
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Understanding Rates of Reactions Lauren Petersen Univ-Intro
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Guided
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Reactions and Rates Jefferson County Middle School Workshop Básico Lab Química
LeChateilier's Principle - Concentration Robert Strauss Secundário Lab

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Equipa de Design Bibliotecas de Terceiros Agradecimentos Para
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  • Ron LeMaster (developer)
  • Trish Loeblein
  • Kathy Perkins
  • Interviewer: Mindy Gratny