Reakce a ceny

Reakce a ceny  - náhled obrazovky  Stáhnout  Sdílet
  • Reaction
  • Kinematika
  • Koncentrace

Obsah

  • Reaction
  • Kinematika
  • Koncentrace
  • Rovnováha

Description

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?

Příklady učebních cílů

  • 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

Učitelská příručka (pdf) obsahuje tipy poskytnuté od členů týmu PhET. ( 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. Tento příspěvek byl navržen PhET. Trish Loeblein
UG-začínající
Demo
Lab
Chemie
Concept Questions for Chemistry using PhET A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Tento příspěvek byl navržen PhET. Trish Loeblein UG-začínající

ZŠ II.st.
MC Chemie
Reactions and Rates 4: Equilibrium LeChatlier A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Tento příspěvek byl navržen PhET. Trish Loeblein UG-začínající

Lab
Chemie
Reactions and Rates 4 lessons (Inquiry Based) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Tento příspěvek byl navržen PhET. Trish Loeblein
UG-začínající
Lab
Demo

KOt
Chemie
Salts and Solubility 5 Activities in pdf A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Tento příspěvek byl navržen PhET. Trish Loeblein
UG-začínající
Ostatní Chemie
Věda o Zemi
Reactions and Rates 3: Introduction to Equilibrium (Inquiry Based) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Tento příspěvek byl navržen PhET. Trish Loeblein
UG-začínající
Lab
KOt
Chemie
Reactions and Rates 2: Intro to Kinetics (inquiry based) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Tento příspěvek byl navržen PhET. Trish Loeblein
UG-začínající
Lab

KOt
Chemie
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. Tento příspěvek byl navržen PhET. Trish Loeblein UG-Pokr Lab Chemie
Reactions and Rates 1 Introduction to reactions (Inquiry Based) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Tento příspěvek byl navržen PhET. Trish Loeblein
UG-začínající
KOt
Lab
Demo
Chemie
Exploring Equilibrium 2 (Le Chatelier's Principle) A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Amy Jordan Lab Chemie
Exploring Equilibrium A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Amy Jordan Lab Chemie
Kinetics Guided Inquiry A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Chris Dewberry UG-začínající Lab
KOt

Ostatní
Reaction Rates A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Emily Firchau Lab Chemie
PhET Sims Aligned to the Chemistry Curriculum Tento příspěvek byl navržen PhET. Julia Chamberlain UG-začínající
Ostatní Chemie
Alignment of PhET sims with NGSS Tento příspěvek byl navržen PhET. Trish Loeblein Ostatní Chemie
Věda o Zemi
Biologie
Fyzika
How do PhET simulations fit in my middle school program? Tento příspěvek byl navržen PhET. Sarah Borenstein ZŠ II.st. Ostatní Chemie
Biologie
Fyzika
Věda o Zemi
Reactions and Rates: Learning Goals from the design team (Inquiry Based) Tento příspěvek byl navržen PhET. Trish Loeblein, Linda Koch UG-začínající

UG-Pokr
Ostatní Chemie
MS and HS TEK to Sim Alignment Elyse Zimmer
ZŠ II.st.
Ostatní Chemie
Fyzika
Biologie
Understanding Rates of Reactions Lauren Petersen ZŠ II.st.
UG-začínající

Guided
Lab
Chemie
Reactions and Rates Jefferson County Middle School Workshop ZŠ II.st. Lab Chemie
LeChateilier's Principle - Concentration Robert Strauss Lab
반응과 반응속도 SIM 사용지침서 이화국(Wha Kuk Lee)
UG-začínající
Lab
Ostatní
Demo
Chemie
Biologie

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Autoři Pomocné knihovny Poděkování
  • Linda Koch (lead)
  • Ron LeMaster (developer)
  • Trish Loeblein
  • Kathy Perkins
  • Interviewer: Mindy Gratny