G. Answer the following questions in detail
1. List the pollutants produced by burning of carbon-containing fue
2. Distinguish between complete and incomplete combustion
3. Explain three methods which are used to extinguish fire.
Answers
Answer:
air pollution, intoxicated gase
Answer:
1. The primary pollutants are Carbon Monoxide (CO), Carbon Dioxide (CO2), Sulfur (SO2), Nitrogen Dioxide (NOx), Nitric Oxide (N2O), Volatile organic compounds (VOCs), and Hydrocarbons (HCs).
2. Incomplete combustion happens when the supply of air or oxygen is poor. Water is still produced, but carbon monoxide and carbon are produced. Less energy is released than during complete combustion.
3. there more than three methods of extinction. the triangle of fire consists of three elements : oxygen, combustible material and activation energy.
combustion case when one of these three elements is suppressed.
for example if fire is caused by gases the efficient method to stop it is to cut the arrival of gaz. by doing so you supress the burning material and combustion.
if it is a fire wood the water based extinguisher will lower temperature and reduce the circulation of oxygen in the material thus stopping combustion.
by other hand if your frying pan catch fires. the efficient method will be to cover it with an anti fire blanket or if not any kind of towel.
for the fire due to electricity dont forget to switch of the electrical source before you try to act on burning material by co2 extinguisher or any other appropriate.