CC16 Fuels and Atmospheric Science

Why are diesel and methane non-renewable energy sources?

• They are made easily by decomposing dinosaurs

• Once we use them we can never make any more

• They are used up faster than they are made

• They use wind power

• They are made from hydrocarbons

Which of the following can NOT be isolated from crude oil

• ashphalt

• methane gas

• carbohydrates

• benzene

• octane

What does nitrous oxide make when combined with water that impacts the environment?

• nitric acid

• ammonia

• nitrogen gas

• sulfur dioxide

How many carbons are there in heptane?

• 8

• 9

• 5

• 6

• 7

What is fractional distillation?

• a process used to separate crude oil

• a process used to burn up fuels

• a way to make different products

• how oil is extracted from the ground

Which of these substances is not a hydrocarbon?

• methane

• ethane

• propane

• butane

• ammonia

Fractional distillation separates crude oil based on the different __________ of the molecules in the mixture

• melting point

• boiling point

• freezing point

• chemical reactivity

A fraction of crude oil is made up of:

• Hydrocarbons of similar chain lengths

• Numbers

• Large hydrocarbons

• Alkenes only

Crude oil is made up of:

• Ethane

• Butane

• A mixture of different hydrocarbons

• Extremely large hydrocarbons which are broken up once extracted

What process happens at each level in the fractionating column?

• Evaporation

• Condensation

• Combustion