Complete combustion

The video explains the process of combustion, where a fuel reacts with an oxidising agent like oxygen to release energy. It highlights complete combustion, which occurs when sufficient oxygen is available to fully oxidise the fuel. An example is given with diamond, which, when heated to 1500°C and placed in liquid oxygen, undergoes complete combustion, resulting in carbon dioxide gas.

What is released when a fuel undergoes oxidation?

• Nitrogen

• Carbon monoxide

• Energy

• Water

What is necessary for complete combustion to occur?

• Presence of a catalyst

• Low pressure

• Sufficient oxygen

• High temperature

What happens to diamond when it is heated to 1500°C and exposed to liquid oxygen?

• It melts

• It forms carbon monoxide

• It undergoes complete combustion

• It remains unchanged

What is the only product formed when diamond undergoes complete combustion?

• Carbon dioxide

• Methane

• Carbon monoxide

• Water vapor

Which of the following is an example of a fuel undergoing complete combustion?

• Charcoal in a barbecue

• Diamond in liquid oxygen

• Wood burning with smoke

• Gasoline in a car engine