Volumes of Liquid and Gaseous Ethanol

Material Beaker (1000 ml), tripod and wire gauze, burner, balloon ethanol. 

Procedure Fill a balloon with 2ml ethanol and close tightly with a knot. Boil 500 ml water in a beaker, insert the balloon in the boiling water. Remove the balloon after some time. 

Observation The balloon is blown up to its full size and retains its size in the boiling water. If it is removed from the water it shrinks and returns to its original size. The same little amount of ethanol remains in the balloon. 

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