American Chemical Society
Energy and Entropy of a Stretched Rubber Band
Stephen Perry invented and patented the modern rubber band in 1845. Young scientists put his discovery to work as they use rubber bands to observe entropy and enthalpy. They determine the change in free energy to figure out if it...
Curated OER
Being Spontaneous
In this spontaneous reactions activity, students read about entropy, enthalpy and Gibbs free energy. They complete a table with reaction conditions and determine if the reaction is spontaneous or not. They solve three problems about free...
Curated OER
Chemistry Worksheet 6
In this chemistry worksheet, students calculate specific changes that take place with different chemical reactions. Students indicate whether the reactions are endothermic or exothermic and spontaneous or nonspontaneous.
Curated OER
Review for Thermodynamics Quiz
In this thermodynamics worksheet, students review kinetic and potential energy, enthalpy, entropy, and standard hear of formation. This worksheet has 1 short answer and 5 problem solving questions.
Curated OER
Answer Key for More Advanced Electrochemistry Calculations
In this electrochemistry activity, students solve 9 problems such as identifying masses of metals produced at cathodes, determining the potential of a cell's electrode and writing cell reactions along with their potential.
Curated OER
Thermodynamics Homework Problem Set
In this chemistry worksheet, students determine the equilibrium pressure of NO at each temperature listed. Then they explain why lowering the combustion temperature would have any effect on the NO emission. Students also use the values...
Shodor Education Foundation
Shodor: Enthalpy and Gibbs Free Energy Calculator
Interactive calculator that allows you to input reactants and products of a reaction and calculate the change in enthalpy and Gibbs Free Energy for the reaction.
Khan Academy
Khan Academy: Biology: Energy and Enzymes: Free Energy
In this article, read all about the relationship between spontaneity and equilibrium to the Gibb's free energy change.
CK-12 Foundation
Ck 12: Free Energy and Equilibrium
[Free Registration/Login may be required to access all resource tools.] Students determine the temperature at which a reversible reaction will achieve equilibrium by using the Gibbs free energy equation, and then describe the...
CK-12 Foundation
Ck 12: Spontaneous Reactions and Free Energy
[Free Registration/Login may be required to access all resource tools.] Students discover the concept of a spontaneous reaction in terms of enthalpy and entropy changes, and then investigate and calculate free energy.
Cosmo Learning
Cosmo Learning: General Chemistry
A collection of video lectures from a general chemistry course taught at the University of California, Berkeley. The course teaches periodic table, chemical bonds, molecular shape, phase changes, chemical reactions, stoichiometry,...
Cosmo Learning
Cosmo Learning: Chemistry 1 A: General Chemistry
A collection of video lectures from a general chemistry course taught at the University of California, Berkeley. The course covers topics like stoichiometry, acid-base and solubility equilibrium, oxidation-reduction reactions, chemical...