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iGCSE Chemistry > 4.5 Organic 1 > Flashcards

4.5 Organic 1 Flashcards

1
Q

What is crude oil made of?

A

mixture of hydrocarbons

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2
Q

What is a hydrocarbon?

A

compound made only of carbon and hydrogen

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3
Q

Why does crude oil have a range of boiling points?

A

different hydrocarbons
lots of shapes + sizes

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4
Q

What is the boiling point of refinery gases?

A

low

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5
Q

What is the boiling point of bitumen?

A

high

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6
Q

What happens to the boiling point when going down the table of hydrocarbons?

A

increases - more energy needed to break larger bonds

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7
Q

What is the molecular mass of refinery gases?

A

low

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8
Q

What is the molecular mass of bitumen?

A

high

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9
Q

What happens to the molecular mass when going down the table of hydrocarbons?

A

increases

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10
Q

What is the colour of refinery gases?

A

light

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11
Q

What is the colour of bitumen?

A

dark

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12
Q

What happens to the colour when going down the table of hydrocarbons?

A

darkens

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13
Q

What is the viscosity of refinery gases?

A

low

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14
Q

What is the viscosity of bitumen?

A

high

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15
Q

What are refinery gases used for?

A

fuel for home cooking

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16
Q

What is gasoline used for?

A

fuel for cars

17
Q

What is kerosene used for?

A

fuel for aircraft

18
Q

What is diesel used for?

A

fuel for trains

19
Q

What is fuel oil used for?

A

fuel for ships

20
Q

What is bitumen used for?

A

making roads

21
Q

How do you remember the hydrocarbons?

A

Rithika’s Got
Gum
K?
Dude!
Frick Off
Biatch

22
Q

How do you remember the uses of hydrocarbons?

A

Harriet Critchley
Came
Again
+
Touched
Sophie’s
Rabbits

23
Q

What are the hydrocarbons?

A

Refinery Gases
Gasoline
Kerosene
Diesel
Fuel Oil
Bitumen

24
Q

What are the uses of the hydrocarbon?

A

Home Cooking
Cars
Aircraft
Trains
Ships
Roads

25
Q

What processes separates the fractions of crude oil?

A

fractional distillation

26
Q

What is fractional distillation used for?

A

separating fractions of crude oil

27
Q

Where is the fractional distillation column hottest?

A

at the bottom

28
Q

Where is the fractional distillation column coldest?

A

at the top

29
Q

How does the fractional distillation column work?

A
  1. crude oil vapours enter column
  2. rise until reaching BP where they condense
  3. different heights
  4. similar together
30
Q

Where do the crude oil vapours condense after entering the column?

A

their boiling point

31
Q

Why do crude oil vapours condense at different heights of the column?

A

different boiling points

32
Q

What are fractions?

A

mixtures containing hydrocarbons that boil in a temperature range

iGCSE Chemistry (16 decks)

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