Energy from fuels !!

In combustion, a substance reacts with ____________ ________________ energy

oxygen, releasing

Meaning of complete combustion?

All of the carbon in the substance is converted into carbon dioxide.

What is an exothermic reaction?

A reaction or process that releases heat energy to the surroundings

What is an endothermic reaction?

A reaction or process that takes in heat energy from the surroundings

What is combustion?

the process of burning something

What is a fuel?

A substance which is burned to release energy

What does burning require?

Oxygen

What is produced when a hydrocarbon or alcohol burns in a plentiful supply of oxygen? and what type of combustion is this?

carbon dioxide and water, complete combustion

What is produced when a hydrocarbon or alcohol burns in a limited supply of oxygen? And what type of combustion is this?

Carbon monoxide and soot, incomplete combustion

Fuels burn ____________ ___________________ _____________ of energy

releasing different quantities

The quantity of heat energy released can be determined experimentally and calculated using?

E = cm∆T

When does complete combustion occur?

When there is plenty of oxygen

What is incomplete combustion?

Only some carbon may be converted into Carbon dioxide but more likely will form other substances

When does incomplete combustion occur?

When there is a limited supply of oxygen