rates of reaction
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9 Terms
Reaction Rate
The speed at which a chemical reaction takes place
Successful Collision
A particle collision in the correct orientation and with enough energy for a reaction to occur
Frequency of Collisions
The number of particle collisions per second
Surface Area
The total outer area of a solid reactant exposed to a liquid or gas
What happens when an acid reacts with a solid?
When an acid reacts with a solid, a larger surface area means more particles are exposed. This allows more collisions to happen at the same time, which makes the reaction go faster
Kinetic Energy (Ek)
Energy due to motion; higher temperature increases kinetic energy and particle speed
What increases kinetic energy?
- More Ek = faster moving particles
- Temperature increases kinetic energy of particles
Particle Collision Theory
Chemical reactions happen when reactant particles bump into each other
What are the requirements for the particle collision theory to occur?
- Must have enough speed (activation energy)
- The right angle to break and make bonds