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Rate of evaporation

Description

Evaporation is the conversion of a liquid into vapour, without necessarily reaching the boiling point. In this experiment the rate of evaporation is measured and compared under different conditions.

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
rate-of-evaporation



here.

Apparatus Chemicals

Eye protection

Per pair or group of students:

Microscope slides, 2 or 3

Access to warm water (Note 1)

Dropper pipette

Timer

Propanone (HIGHLY FLAMMABLE, IRRITANT), few cm3

Refer to Health & Safety and Technical notes section below for additional information.

 

 






Evaporation is the conversion of a liquid into vapour, without necessarily reaching the boiling point. In this experiment the rate of evaporation is measured and compared under different conditions.

ADDITIONAL INFORMATION

This is a resource from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry. This collection of over 200 practical activities demonstrates a wide range of chemical concepts and processes. Each activity contains comprehensive information for teachers and technicians, including full technical notes and step-by-step procedures. Practical Chemistry activities accompany Practical Physics and Practical Biology .