Master Gibbs Free Energy with Picmonic for College

With Picmonic, facts become pictures. We've taken what the science shows - image mnemonics work - but we've boosted the effectiveness by building and associating memorable characters, interesting audio stories, and built-in quizzing.

Gibbs Free Energy

Goblin Frees Batteries
Picmonic

Gibbs Free Energy is a thermodynamic potential that measures the amount of work obtainable from a defined system. It is often used to determine whether a reaction is spontaneous as written or spontaneous in reverse. The equation is ΔG = ΔH - TΔS, where H is enthalpy, S is entropy, and G is Gibbs free energy. If ΔG is negative, the reaction is spontaneous as written. If ΔG is positive, the reaction is nonspontaneous as written but spontaneous in reverse. If ΔG is zero, the reaction is at equilibrium, and there is no net change in concentrations of products or reactants.

4 KEY FACTS
ΔG = ΔH-TΔS
Delta-G-Goblin EQUALS Delta-H-Horse SUB-tract T-Thermometer Delta-S-Snake

The equation often seen for Gibbs Free energy is ΔG = ΔH-TΔS. ΔG is the Free Energy of the Reaction, ΔH is the enthalpy of the reaction, T is temperature, and ΔS is the entropy of the reaction.

If ΔG is Negative, the reaction is Spontaneous
Delta-G-Goblin Devil with Spartan Reaction

If the change in Gibbs free energy is negative, the reaction is spontaneous. This means that it's energetically favorable for the reaction to proceed as written, but does not reflect on the kinetics of the reaction.

If ΔG is 0, the reaction is at Equilibrium
Delta-G-Goblin EQUALS Zorro at Equal-Leprochan

If the change in Gibbs free energy is zero, it means the reaction is currently in equilibrium, meaning the concentrations of reactants and products do not change over time.

If ΔG is Positive, the reaction is Nonspontaneous
Delta-G-Goblin Angel with Nun-Spartan Reaction

If the change in Gibbs free energy is positive, the reaction is nonspontaneous. This means that it's not energetically favorable for the reaction to proceed as written, but does not reflect on the kinetics of the reaction. In most cases it indicates that the reverse reaction is spontaneous.

Unlock all 4 facts & definitions with Picmonic Free!

JOIN FREE

Take the Gibbs Free Energy Quiz

Picmonic's rapid review multiple-choice quiz allows you to assess your knowledge.

START QUIZ NOW

It's worth every penny

Picmonic for College Covers

College
0+ Videos
0+ Facts

Our Story Mnemonics Increase Mastery and Retention

Memorize facts with phonetic mnemonics

Unforgettable characters with concise but impactful videos (2-4 min each)

Ace Your College Classes & Exams with Picmonic:

Over 850,000 students use Picmonic’s picture mnemonics to improve knowledge, retention, and exam performance.

Choose the #1 College student study app.

Picmonic for College covers information that is relevant to your entire College education. Whether you’re studying for your classes or getting ready to conquer , we’re here to help.

Works better than traditional College flashcards.

Research shows that students who use Picmonic see a 331% improvement in memory retention and a 50% improvement in test scores.