Demo Photo

DemonstrationsThermodynamics II › 18.0

Lecture Demonstrations

Thermodynamics II: Entropy and Free Energy

18.0 Props for Thermodynamics II

Subjects: Thermodynamics, Entropy

Description: A toy with four layers and and various sized balls and holes is used to illustrate the concept of Enthalpy.


  • Entropy toy


  1. Shake the toy until the balls area arranged in their proper places.

Discussion: It takes more energy to arrange the balls than to disarrange them.

Safety: None.

Disposal: None.

References: None.

Download a Printable Version