Objective:
– Shows lowering of the boiling point by reducing the surface pressure on the liquid.
Apparatus:
- 300 ml Beaker with coloured water
- Vacuum pump
- Vacuum plate
- “short” thermometer
Method:
Water will boil quickly at the reduced pressure in the beaker. The thermometer, set in the beaker, shows room temperature during boiling.
Boiling Point at Reduced Pressure
– Video Created at the North Carolina School of Science and Mathematics