Thermodynamics II: Entropy and Free Energy
A toy with four layers and various sized balls and holes is used to illustrate the concept of Enthalpy. |
The thermal properties of rubber will be explored in this demonstration. Will a rubber band contract or expand when heated? |
A combustion reaction is demonstrated by the burning of magnesium in air, emitting a brilliant light and intense heat. |
An endothermic reaction involving the combination of two solids is demonstrated. |
Dry ice is placed in a plastic bag and sealed. The dry ice sublimes producing CO2 gas, which expands within the plastic bag, doing work on the surroundings. |
MREs and commercial handwarmers are displayed and activated to illustrate exothermic chemical processes and commercial uses. |