Reversible Reactions

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Reversible Reactions وێنه‌ی شاشه‌
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  • زانستی بزووتنی تین
  • ده‌ما
  • تین
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  • زانستی بزووتنی تین
  • ده‌ما
  • تین
  • گاز
  • گۆڕانکاری
  • وزه‌ی تین


Watch a reaction proceed over time. How does total energy affect a reaction rate? Vary temperature, barrier height, and potential energies. Record concentrations and time in order to extract rate coefficients. Do temperature dependent studies to extract Arrhenius parameters. This simulation is best used with teacher guidance because it presents an analogy of chemical reactions.

Sample Learning Goals

  • Describe on a microscopic level, with illustrations, how reactions occur.
  • Describe how the motion of reactant molecules (speed and direction) contributes to a reaction happening.
  • Predict how changes in temperature, or use of a catalyst will affect the rate of a reaction.
  • On the potential energy curve, identify the activation energy for forward and reverse reactions and the energy change between reactants and products.
  • Sketch how the concentrations of reactants and products change as a reaction proceeds.
  • From a graph of concentration as a function of time, students should be able to identify when a system has reached equilibrium.
  • Calculate a rate coefficient from concentration and time data.
  • Determine how a rate coefficient changes with temperature.
  • Compare graphs of concentration versus time to determine which represents the fastest or slowest rate.
Version 3.15

Teacher-Submitted Activities

Entropy, Microstates, and Probability - Interactive Lecture Demonstration Guide A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Ted Clark, Julia Chamberlain UG-Intro Demo کیمیا
Salts and Solubility 3: Solution Equilibrium and Ksp (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 HS
Inquiry Equilibrium activity A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Joshua Manner HS تاقیگه‌
Equilibrium Inquiry and Experiment Activity A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Ryan White HS تاقیگه‌ کیمیا
PhET Sims Aligned to the Chemistry Curriculum This contribution was designed by PhET. Julia Chamberlain UG-Intro
دیکه‌ کیمیا
How do PhET simulations fit in my middle school program? This contribution was designed by PhET. Sarah Borenstein MS دیکه‌ زانستی زه‌وی
MS and HS TEK to Sim Alignment Elyse Zimmer MS
دیکه‌ فیزیا
Le Chatelier's Principle Demos Laura Conrad HS CQs
Basic Thermodynamics Inquiry Dan Kohler HS CQs کیمیا
가역반응 SIM 사용지침서 Wha Kuk Lee UG-Intro

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Design Team Third-party Libraries سوپاس بۆ
  • Jack Barbera
  • Linda Koch (lead)
  • Ron LeMaster (developer)
  • Interviewer: Wendy Adams