Chapter 16: Reaction Energy

Forms of Energy

Energy forms and changes – Build your own system, with energy sources, changers, and users.

http://phet.colorado.edu/en/simulation/energy-forms-and-changes

(Main Idea: Temperature and heat are related but not identical.)

Thermochemistry

Chemical Thermodynamics – introduction to the study of the energy changes that accompany physical and chemical changes.

http://www.shodor.org/unchem/advanced/thermo/

http://www.shodor.org/unchem/advanced/thermo/

(Main Idea: Energy transfer varies from reaction to reaction.)

Heat of Combustion – explanation of the concepts involved, and an interactive experiment to find the molar enthalpy of combustion and molar enthalpy of formation for methane.

http://www.chm.davidson.edu/vce/calorimetry/HeatOFCombustionOfMethane.html

http://www.chm.davidson.edu/vce/calorimetry/HeatOFCombustionOfMethane.html

(Main Idea: Enthalpy changes in combustion.)

Endothermic and Exothermic Reactions – high-energy video describing the science behind these reactions.

http://www.teachersdomain.org/asset/rr10_vid_endoexo/

(Main Idea: Energy transfer varies from reaction to reaction.)

Enthalpy – interactive tutorial on enthalpy, the heat content in a chemical reaction.

http://www.wisc-online.com/Objects/ViewObject.aspx?ID=GCH8805

(Main Idea: Enthalpy of formation is the energy change when elements form one mole of a compound; Change in enthalpy is calculated using Hess’s Law.)

Specific Heat

Specific Heat – video discussing specific heat, the amount of heat needed to raise one gram of a substance one degree Celsius.

http://www.brightstorm.com/science/chemistry/thermochemistry/specific-heat/

(Main Idea: Temperature and heat are related but not identical.)

Specific Heat Capacity – explanation of the concepts involved, and an interactive experiment to find the specific heat capacity of copper.

http://www.chm.davidson.edu/vce/calorimetry/SpecificHeatCapacityOfCopper.html

http://www.chm.davidson.edu/vce/calorimetry/SpecificHeatCapacityOfCopper.html

(Main Idea: Temperature and heat are related but not identical.)

Driving Force of Reactions

Gibbs Free Energy – discussion of the free energy in a system, along with practice problems.

http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch21/gibbs.php

http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch21/gibbs.php

Main Idea: Free energy changes determine if a reaction is endothermic or exothermic.)

Entropy and Spontaneous Reactions – discussion of entropy, the laws of thermodynamics, spontaneity, and free energy.

http://chempaths.chemeddl.org/services/chempaths/?q=book/General%20Chemistry%20Textbook/1494/entropy-and-spontaneous-reactions&title=CoreChem:Including_the_Surroundings

http://chempaths.chemeddl.org/services/chempaths/?q=book/General%20Chemistry%20Textbook/1494/entropy-and-spontaneous-reactions&title=CoreChem:Including_the_Surroundings

Main Idea: Free energy changes determine if a reaction is endothermic or exothermic.)

Free Energy Calculations – From Khan Academy, explanation on how to to solve free energy problems.

https://www.khanacademy.org/science/physics/thermodynamics/v/gibbs-free-energy-example

Main Idea: Free energy changes determine if a reaction is endothermic or exothermic.)

Free Energy – Nice attempt to illustrate the contributions of enthalpy and entropy to free energy.

http://molecularmodelingbasics.blogspot.com/2013/12/illustrating-enthalpy-entropy-and-free.html

Main Idea: Free energy changes determine if a reaction is endothermic or exothermic.)