explosions and surface area

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What can combustible powders cause?
explosions
1 of 7
What happens when some powders react with oxygen?
it makes large volumes of carbon dioxide and water vapour
2 of 7
Why must owners of a factory using combustible powders be careful?
they must ensure that the powders can't reach the open atmosphere and that the chances of spark being produced near the powders is very small.
3 of 7
What does breaking up a block into smaller pieces do
increases surface area
4 of 7
What happens as the surface area of a solid is increased
rate of reaction increases
5 of 7
why do powders (instead of solids) increase collision frequency?
they can spread through a reaction mixture
6 of 7
why is collision frequency less in a block of material?
collisions can only occur with the particles on the surface
7 of 7

Other cards in this set

Card 2

Front

What happens when some powders react with oxygen?

Back

it makes large volumes of carbon dioxide and water vapour

Card 3

Front

Why must owners of a factory using combustible powders be careful?

Back

Preview of the front of card 3

Card 4

Front

What does breaking up a block into smaller pieces do

Back

Preview of the front of card 4

Card 5

Front

What happens as the surface area of a solid is increased

Back

Preview of the front of card 5
View more cards

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