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Physics Definitions
Paper 2
Energy and Change
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Cards (5)
Heat of Reaction
(Change in)
H
Exothermic
(Change in) H<0
Energy is
released
Endothermic
(Change in
) H>0
Energy is absorbed
Activation Energy
The
minimum
energy that is required for a reaction to take place.
Activated Complex
The
unstable transition state
from
reactants
to products.