What happens when alcohol is ignited to fire?

When alcohol is ignited, it undergoes combustion. This is a chemical reaction where the alcohol reacts with oxygen in the air, releasing heat and light energy.

Here's a breakdown of what happens:

1. Ignition: The alcohol needs a source of heat (like a flame or spark) to start the reaction.

2. Vaporization: The heat causes the alcohol to evaporate, creating alcohol vapors.

3. Reaction: The alcohol vapors mix with oxygen in the air and react, forming carbon dioxide (CO2), water (H2O), and heat. This is an exothermic reaction, meaning it releases heat.

4. Flame: The heat from the reaction causes more alcohol to vaporize, sustaining the reaction and creating a flame.

5. Combustion Products: The flame continues to burn until all the alcohol is consumed, leaving behind the combustion products (CO2 and H2O).

Important Note: The type of alcohol significantly affects the burning process. For example, methanol burns with a pale blue flame, while ethanol burns with a bright yellow flame.

Safety Considerations:

* Alcohol is flammable and should be handled with caution.

* Never ignite alcohol in an enclosed space, as the fire can spread quickly.

* Always use a fire extinguisher nearby when working with alcohol.