• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Burning Fuels - Fuels are substances that release energy when they react with oxygen. This reaction is known as burning, or combustion. Combustion is an exothermic reaction

Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  • Essay length: 1023 words
  • Submitted: 19/03/2004
Share this essay:
GCSE Organic Chemistry

The first 200 words of this essay...

Fuels

Burning Fuels

Fuels are substances that release energy when they react with oxygen. This reaction is known as burning, or combustion. Combustion is an exothermic reaction. The energy which is given out by combustion is used in a variety of ways:

> > Energy from burning methane in gas cookers is used for heating.

> > Energy from burning candles is used for lighting.

> > Energy from burning petrol in car engines is used to create motion.

> > Energy from burning coal in power stations is used to generate electricity.

The oxidation of fuels gives chemical products, as well as energy. Most of the fuels used today are hydrocarbons. When hydrocarbons burn, carbon dioxide and water are the usual chemical products:

e.g. CH4(g) + 2O2(g) ® CO2(g) + 2H2O(l)

Incomplete Combustion

If the air/oxygen supply for burning is limited, then incomplete combustion may occur. The combustion will not only be less exothermic, but the chemical products will also differ - carbon monoxide is formed instead:

e.g. CH4(g) + 11/2O2(g) ® CO(g) + 2H2O(l)

Carbon monoxide is an extremely poisonous gas. If the air/oxygen supply

Read more
The above preview is unformatted text

Found what you're looking for?

  • Start learning 29% faster today
  • Over 150,000 essays available
  • Just £6.99 a month

Marked by a teacher

This essay has been marked by one of our great teachers. You can read the full teachers notes when you download the essay.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review on the essay page.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review under the essay preview on this page.