Fractional distillation

Question 1

What are fuels made of?

Answer 1

Crude oils.

Question 2

What compounds are in crude oils

Answer 2

hydro carbons

Question 3

are compounds in crude oils chemically bonded?

Answer 3

No they are not

Question 4

What are hydrocarbons with similar chain lengths called?

Answer 4

Fractions

Question 5

How do you get fractions from crude oil?

Answer 5

Fractional distillation

Question 6

what is the first step of fractional distillation?

Answer 6

crude oil is heated until it evaporates

Question 7

what is the second step of fractional distillation?

Answer 7

The crude oil vapour is put into the bottom of a fractioning tower until it rises

Question 8

what is the third step of fractional distillation?

Answer 8

The temperature is highest at the bottom of a fractioning column because that is where the fuel source is

Question 9

what is the fourth step of fractional distillation?

Answer 9

the longer chain hydrocarbons condense near the bottom of the fractioning column and are collected as liquids

Question 10

what is the fifth step of fractional distillation?

Answer 10

short-chained hydrocarbons have a lower boiling point and pass up the column and condense at a lower temperature nearer the top of the fractioning column

Question 11

what is the fifth step of fractional distillation?

Answer 11

Tubes come out of the fractioning column to collect the different fractions.these fractions are collected and processed into different products like detergents and petrol

Question 12

How many carbons in methane?

Answer 12

1

Question 13

How many carbons in Ethane?

Answer 13

2

Question 14

How many carbons in Propane?

Answer 14

3

Question 15

How many carbons in Butane?

Answer 15

4

Question 16

What happens in cracking?

Answer 16

Hydro carbon vapours pass over a hot catalyst this causes some carbon-carbon (C-C) bonds to break off.