Combustion Of Fire Essay

I. Introduction Fire is an exothermic chain reaction. It is called exothermic because it produces heat and is called a chain reaction because when one fuel source catches fire, it spreads continuously until all the fuel is burned up. Fire is composed of 3 components; oxygen, fuel and heat. Fire is one of the major tragedies here in the Philippines. Most common reason of casualties in fire is because of suffocation. People were trapped and died because they cannot breathe properly. During fire, it needs oxygen to burn, the amount of oxygen available to it controls the rate at which it burns. That’s why during fire people who were trapped in buildings, died because the oxygen present in the building was absorbed by the fire, and makes people hard to breathe. In this experiment, candle was used

The reactant burns in oxygen, producing a limited number of products. When a hydrocarbon burns in oxygen, the reaction will primarily yield carbon dioxide and water

Incomplete Combustion:

It occurs when the supply of air or oxygen is limited. Water is still produced, but carbon monoxide and carbon are produced instead of carbon dioxide. Carbon monoxide is a poisonous gas it can harm the human body. The carbon produced is released as soot.

II. Research Problem

What is the effect of the length of the candle to its burning time?

III. Hypothesis If the length of the candle is longer then, the faster it will burn out. If the length of the candle is shorter then, the slower it will burn out.

IV. Experimentation

Materials Needed:

• 3 candles (that differ in length)

• Jar

• Matches

• Ruler

• Stopwatch on your phone

Procedure:

1. Prepare all the materials needed.

2. Measure and cut the candle into three different lengths Candle A (6 cm), Candle B (8 cm) and Candle C (12