Understanding the Chemical Process Definition

The question describes a specific chemical process involving a fuel, oxygen, and the release of energy as heat and light, typically resulting in a flame.

Analyzing the Reaction Options

Let's examine the provided options in the context of the definition:

• Convection: This is a method of heat transfer in fluids (liquids or gases), not a chemical reaction itself.
• Carbonisation: This is the process of converting organic substances into carbon by heating in the absence of air or by incomplete combustion. It doesn't match the description of reacting with oxygen to produce heat and light.
• Combustion: This is a rapid chemical process where a substance reacts vigorously with an oxidant, usually oxygen, releasing energy in the form of heat and light. This perfectly matches the question's description of a fuel (hydrocarbon) reacting with oxygen.
• Conduction: This is another method of heat transfer, occurring through direct contact between particles, typically in solids. It's not a chemical reaction.

Identifying Combustion

Based on the analysis, Combustion is the term that accurately describes the chemical reaction between a fuel (like a hydrocarbon) and oxygen, producing heat, light, and a flame.