Hf-2 Boiling Water at Room Temperature

Aim

To demonstrate that the boiling point of a liquid depends on the pressure

Apparatus

  • Vacuum Chamber
  • Beaker of Coloured Water
  • Rotary Vacuum pump

Boil Water at Room Temp 1 Boil Water at Room Temp 2

Boiling of Water at Room Temperature Apparatus.

Description

A light layer of vacuum grease is applied to the rim of the dessicator. Water at room temperature is placed inside and the vacuum pump is then used to evacuate the vessel. When the air pressure is reduced to the vapour pressure of water at room temperature the water will begin to boil.

Video