# Classroom Resources: Equilibrium

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1 – 11 of 11 Classroom Resources

• Solubility, Entropy, Le Châtelier's Principle, Gibb's Free Energy , Equilibrium Constants, Enthalpy | High School

### Lesson Plan: Relationship Between Free Energy and the Equilibrium Constant

In this lesson, students will explore the relationships between solubility and Keq (specifically Ksp), as well as Keq and DG°. First, a guided inquiry activity will introduce the relationship between standard free energy and equilibrium constant with the equation DG° = -RTlnKeq. Then data collection regarding solubility of potassium nitrate at various temperatures will lead to the calculation of Ksp and DGo for the dissolution reaction at those temperatures. Students will manipulate the equations DG° = -RTlnKeq and DG° = DH° - TDS° to derive a linear relationship between 1/T and lnKeq, which will then be graphed to determine values for DH° and DS°.

• Le Châtelier's Principle, Establishing Equilibrium, Equilibrium Constants, Reaction Quotient | High School

### Activity: Le Châtelier's Principle Particulate View

In this activity, students will gain a better understanding of how applying a stress to a reaction system will shift the equilibrium. The students will be able to predict the direction a reversible reaction will shift based of the value of the reaction quotient (Q) and the equilibrium constant (K). This activity should be completed after students have completed the activity “Equilibrium Particulate View.”

• Establishing Equilibrium, Equilibrium Constants, Reaction Quotient | High School

### Activity: Equilibrium Particulate View

In this activity, students will gain a better understanding of what it means for a reaction to be in a state of equilibrium and how a reaction progresses over time to establish equilibrium. Students will also relate the equilibrium constant to the amount of products and reactants present at equilibrium.

• Le Châtelier's Principle, Establishing Equilibrium, Equilibrium Constants, Reaction Quotient | High School

### Lesson Plan: Equilibrium Unit Plan

The AACT high school classroom resource library and multimedia collection has everything you need to put together a unit plan for your classroom: lessons, activities, labs, projects, videos, simulations, and animations. We constructed a unit plan using AACT resources that is designed to teach equilibrium to your students.

• Le Châtelier's Principle, Equilibrium Constants | High School

### Activity: Equilibrium in a Beaker

In this activity, students will model equilibrium reactions using plastic chips to represent atoms. The goal of the lesson is to connect the symbolic model of an equilibrium reaction to its particle model.

• Le Châtelier's Principle, Equilibrium Constants, Reaction Quotient | High School

### Lesson Plan: Q, K, and Le Chatelier

In this lesson students practice applying Q vs K as an explanatory tool in a simulation and demonstration. In both activities, students will consider how a change in concentration of one species subsequently effects all the species as equilibrium is reestablished.

• Catalysts, Entropy, Equilibrium Constants, Enthalpy, Activation Energy, Energy Diagrams, Reaction Quotient, Spontaneous vs. Non-spontaneous Reactions | High School

### Lesson Plan: Making Connections in Kinetics, Equilibrium and Thermochemistry

In this lesson students will understand the connections between the equilibrium constant (K) and the reaction quotient (Q) as well as how they determine the favorability of a reaction. Additionally students will be able to determine if a reaction is kinetically favored or thermodynamically favored.

• Le Châtelier's Principle, Establishing Equilibrium, Equilibrium Constants, Reaction Quotient | High School

### Lesson Plan: Discovering Equilibrium

In this lesson students manipulate sets of given conditions to discover what equilibrium is, and how the equilibrium is established from different starting conditions. Students then refer back to the activity as the foundation framework for the rest of Essential Knowledge 6.A, 6.B.1 and 6.B.2. This lesson focuses on both a qualitative and quantitative understanding of equilibrium.

• Heat, Temperature, Exothermic & Endothermic, Activation Energy, Le Châtelier's Principle, Establishing Equilibrium, Equilibrium Constants, Reaction Quotient | High School

### Activity: Reversible Reactions Simulation

In this activity, students will investigate how temperature, activation energy, initial amounts of products and reactants, and type of reaction (exo- or endothermic) effect the equilibrium position of a reaction using a simulation.

• Heat, Temperature, Exothermic & Endothermic, Le Châtelier's Principle, Establishing Equilibrium, Equilibrium Constants, Reaction Quotient | High School

### Demonstration: Le Châtelier’s Principle

In this demonstration, students will witness a system at equilibrium and apply different stresses to see how the equilibrium shifts.

• Reaction Rate, Reversible Reactions, Le Châtelier's Principle, Establishing Equilibrium, Equilibrium Constants, Graphing | High School

### Lab: Dynamic Equilibrium Simulation

In this lab, students will explore equilibrium using paper clips to mimic a chemical reaction.