Question

How much heat does 100% ethanol generate on burning?

Answer 1

An ethanol–water solution that contains 40% alcohol by mass (about 56% by volume) will catch fire if heated to about 26 °C (79 °F) and if an ignition source is applied to it. This is called its flash point. The flash point of pure ethanol is 16.60 °C (61.88 °F), less than average room temperature.