Part 5 Fossil Fuels Flashcards
State the origin of petroleum / crude oil.
Petroleum is formed when large quantities of dead marine organisms that are buried underneath sendimentary rock and subjected to intense heat and pressure for a long time
State the origin of natural gas.
Natural gas is formed when large quantities of dead marine organisms that are buried underneath sendimentary rock and subjected to intense heat and pressure for a long time.
State the origin of coal.
Coal is formed when large amount of dead plants that are buried under layers of sand and mud and subjected to intense heat and pressure for a long time.
Give one daily use of naphtha
Use to make town gas.
Give one use of kerosene.
Use as fuel for plane.
Give one use of refinery gas
Use to make liquefied petroleum gas as fuel for taxi / minibus.
State the condition needed for substitution to occur.
Under UV light // sunlight // light.
what is meant by the term “cracking” ?
Cracking is the process for breaking down large molucules to small molecules in the absence of air.
