Two Simple and Cheap Illustrations of Phase Equilibrium and Vapor Pressure
Kaleb Underwood | Sat, 08/04/2018 - 12:37
A favorite demonstration is to boil water by lowering the pressure in a bell jar using a vacuum pump. Unfortunately, purchasing a bell jar, vacuum plate, and vacuum pump can run upwards of $1,000 which poses a hardship for many teachers. Here are two simple and inexpensive demonstrations of phase equilibrium and vapor pressure.