Energy and entropy > alcohol

This experiment compares the amounts of heat energy produced by burning various alcohols.
 

A mixture of alcohol and air in a large polycarbonate bottle is ignited. The resulting rapid combustion reaction, often accompanied by a dramatic ‘whoosh’ sound and flames, demonstrates the large amount of chemical energy released in the combustion of alcohols.
 

A spectacular demonstration that shows the large energy changes that occur during the combustion of alcohols, and also illustrates the principle of the internal combustion engine.