Rates of Reaction

Rates of Reaction

Rates of Reaction Collision Theory orientation Collision Theory activation energy Reaction Diagram

Particles have to collide with more energy than Ea to form product. Collisions with less energy than Ea will not react!

What factors affect the rate of a reaction? How could we increase the number of collisions? What

factors affect the rate of a chemical reaction? Surface Area Smaller particle size =

larger surface area More particles exposed for reaction More particles = more collisions = more product! Crushing, pulverizing, chopping up, etc.

Catalyst A catalyst provides an alternative pathway with lower activation energy. Lower Ea = more particles able to react.

Temperature T line original temp. T + 1 higher temp. Higher temp = more

kinetic energy for particles More particles have collisions greater than Ea Concentration Which solution will react faster?

Nature of Reactants Sacrifical anode a more reactive metal It will react and protect another material Boat hulls, water

heaters, pipe lines Factors Affecting Reaction Rate Surface Area Catalyst Temperature

Concentration Nature of Reactants

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