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Flashcards in C2D - What Should We Make Cars From Deck (19):
0

What two things need to be present for iron to corrode ?

Oxygen & Water

1

What type of reaction takes place with the corrosion of iron and why ?

Oxidisation because the iron gains oxygen

2

When iron forms iron oxide explain what happens with the water ?

It becomes loosely bonded to the iron oxide resulting in hydrated iron oxide

3

What's the word equation for iron corrosion ?

Iron + Oxygen + Water = Hydrated Iron Oxide

4

What happens if water is salt or acidic ?

Rusting takes place a lot quicker

5

Does aluminium corrode when wet ?

Nope

6

What happens if aluminium doesn't corrode ?

Aluminium reacts with oxygen to form aluminium oxide

7

How come aluminium only reacts with oxygen once ?

The aluminium oxide acts as a protective layer and sticks to the aluminium

8

Why is the iron oxide flaky ?

It's porous so oxygen & water can penetrate lower layers

9

What are the advantages of aluminium over steel ?

Lower density so car body will be lighter which saves fuel economy which saves fuel resources

Corrodes less so has a longer lifetime

10

What's aluminiums let down ?

Super expensive

11

Why is steel used in cars ?

Strong so can be hammered into sheets & welded together

12

What is steel good for ?

Bodywork

13

Why is aluminium used in cars and where ?

Strong and low density. Used in engine to reduce weight

14

Why is glass used ?

Transparent for windows

15

Why are plastics used for internal coverings ?

Strong and hard wearing

16

What are fibres used for and why ?

Covering seats and floors because they are heard wearing

17

What parts of the car go to recycling and what parts go to landfill ?

Recycling - Metals
Landfill - Plastics

18

By 2015 how much of a car needs to be recyclable ?

95%