Chemistry unit 2 keywords

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Catalyst
Increase the reaction rate without being used up
1 of 10
How does a Catalyst work?
providing an alternative route or mechanism with a lower activation energy
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Activation Energy
minimum energy which particles need to collide to start a reaction
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Rate of reaction
The change in concentration of a substance in unit time
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What happens when doubling the concentration or pressure?
Double the number of particles per unit volume and double the frequency of effective collisions
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Le chatelier's principle
If an external condition is changed the equilibrium will shift to oppose the change
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1/t
the amount of precipitate is fixed
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carbon neutral
A process or a series of processes in which as much CO2 is absorbed from the air is given out
8 of 10
mean bond enthalpy?
the average value of the
9 of 10
enthalpy change
Heat change at a constant pressure
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Other cards in this set

Card 2

Front

providing an alternative route or mechanism with a lower activation energy

Back

How does a Catalyst work?

Card 3

Front

minimum energy which particles need to collide to start a reaction

Back

Preview of the back of card 3

Card 4

Front

The change in concentration of a substance in unit time

Back

Preview of the back of card 4

Card 5

Front

Double the number of particles per unit volume and double the frequency of effective collisions

Back

Preview of the back of card 5
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