edexcel AS Energetics

Basic knoweledge test on energetics.

  • Created by: will
  • Created on: 15-05-13 10:58
A reaction in which heat energy is absorbed is said to be
Endothermic
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When the energy of the reactants is higher than the energy of the products is...
Exothermic
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When the energy of the reactants is lower than the energy of the products is...
Endothermic
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Delta H= -394KJ/mol is an...
Exothermic change
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Delta H= +178KJ/mol is a...
Endothermic change
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if something is lower down on the energy diagram than something else is is said to be...
More energetically stable
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The minimum energy required for a reaction to occur is known as the...
Activation Energy
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If the molecules don't, for example, hit each other with enough energy, then nothing happens. We say that the mixture is
Kinetically Stable
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Q9 continued... even though it may be........................ with respect to its possible products.
Energetically Unstable
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Other cards in this set

Card 2

Front

When the energy of the reactants is higher than the energy of the products is...

Back

Exothermic

Card 3

Front

When the energy of the reactants is lower than the energy of the products is...

Back

Preview of the front of card 3

Card 4

Front

Delta H= -394KJ/mol is an...

Back

Preview of the front of card 4

Card 5

Front

Delta H= +178KJ/mol is a...

Back

Preview of the front of card 5
View more cards

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