Crude Oil iGCSE

How does the temperature change from top to bottom?

• Increases
• Decreases
• It does not change
• Cannot be determined

Tags

NGSS.HS-ESS2-3

NGSS.HS-PS3-2

NGSS.HS-PS3-4

What does the viscosity of a hydrocarbon tell you?

• How easily it flows
• How easily it sets alight
• What its boiling point is
• How long the hydrocarbon is

The longer the hydrocarbon, the ________ the flammability?

• Lower
• Higher

The longer the hydrocarbon, the _________ the viscosity?

• Lower
• Higher

What is kerosene used for?

• Fuel for ships
• Fuel for lorries
• Fuel for airplanes
• Making roads

What process is used to separate crude oil in hydrocarbons with different chain lengths?

• distillation

• fractional distillation

• cracking

• polymerisation

Where in the fractionating column are shorter chain hydrocarbon molecules obtained?

• At the top

• At the bottom

Molecules collected at the bottom of the fractionating column tend to be...

• more viscous, less flammable and less volatile

• less viscous, more flammable and more volatile

• more viscous, more flammable and less volatile

• less viscous, less flammable and more volatile

Used in gas stoves

• kerosene

• fuel oil

• bitumen

• refinery gas

The most viscous fraction

• kerosene

• fuel oil

• bitumen

• refinery gas