Entropy and Gibbs Free Energy
Chemistry · JC 1 · Chemical Energetics and Thermodynamics · 1.º Período

Entropy and Gibbs Free Energy

This topic introduces entropy as a measure of disorder and Gibbs free energy as the ultimate predictor of reaction spontaneity. Students will calculate standard entropy and free energy changes.

MOE Syllabus Outcomes9729 Core Idea 2: Structure and Properties - Chemical Energetics9729 Learning Outcome 4(f)-(i)

About This Topic

This topic introduces entropy as a measure of disorder and Gibbs free energy as the ultimate predictor of reaction spontaneity. Students will calculate standard entropy and free energy changes.

Key Questions

  1. What factors cause an increase in the entropy of a system?
  2. How does temperature affect the spontaneity of a reaction?
  3. What does a negative Gibbs free energy value indicate?

Active Learning Ideas

See all activities→

Activities & Teaching Strategies

See all activities

Planning templates for Chemistry

Lesson Plan

Science

A science-specific template built around the scientific method, with sections for phenomena, investigation, data analysis, and claims-evidence-reasoning (CER) writing.

More in Chemical Energetics and Thermodynamics

Enthalpy Changes and Hess' Law

Students will define standard enthalpy changes of reaction, formation, and combustion. They will construct energy cycles using Hess' Law to calculate unknown enthalpy changes.

8 methodologies

Born-Haber Cycles

Students will construct Born-Haber cycles to calculate lattice energies of ionic compounds. They will also explore the relationship between lattice energy, hydration energy, and the enthalpy of solution.

8 methodologies

Edited by Adriana Perusin, Editor-in-Chief, Flip Education
Synthesized by Flip Education from Lyman's Think-Pair-Share collaborative-discussion routine (1981)