Ch. 12 Kinetics
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19 Terms
Higher concentration of reactants = ____ reaction rate
Faster
Higher temperature = _____ reaction rate
Faster
Catalyst
Speed up chemical reactions by lowering the activation energy
Lower EA = ___ reaction rate
Faster
Bond breaking is ____
Endothermic
Bond making is ____
Exothermic
To be successful, a collision must occur with appropriate ____ and have enough ____ to break existing bonds
Orientation, energy
Effective collisions form an ____ complex
Activated
Activated complex may fall apart to yield ___ or it may ____ reactants
Products, reactants
Negative ΔH =
Exothermic
Positive ΔH =
Endothermic
Higher potential energy for products = ____ ΔH
Positive
Higher potential energy for reactants = ____ ΔH
Negative
More energetic collisions = ____ collisions can overcome EA
More
Catalysis
Speeding up a chemical reaction
A catalyst speeds up both the ____ and the ___ reactions
Forward, reverse
A catalyst does not affect the ____ of the reaction
ΔH
A catalyst ______ after reaction
Remains unchanged
Expressing rate of reaction
Δ = (final state - initial state)
Note 
Flashcards (116)