Factors Of Rate Of Reaction: an introduction Flashcards
What is needed for particles react?
(hint: it’s not anything to do reactants or products or whatever)
Particles must collide together with enough energy in order to react.
What is the idea of collision theory? What does it state?
Collision theory states that a chemical reaction can take place/occur between particles that collide.
There are two parts of collision theory that affect the rate of reaction. What are they?
Frequency of collisions between particles
Energy transferred during a collision.
How does frequency of particle collision affect rate of reaction?
The frequency of particle collision is the idea of how often particles collides. The more collisions that take place, the faster the reaction
What happens if you double the frequency of the collisions?
Then the rate of reaction should also double
How does the amount of energy transferred during collisions affect rate of reaction?
Particles have to collide with ENOUGH energy for a collision to be SUCCESSFUL. And if they do that more often, it will mean that the reaction would happen faster.
How does energy transferred between particles link to activation energy. (hint: I’m asking for a definition)
Activation energy is the minimum amount of energy particles need for a reaction.
Why do particles need energy for a successful collision?
Particles need that minimum of energy to break the bonds of the reactant and let the reaction start.
There are four factors that increase rate of reaction. What do they need to do?
(hint: there are two things they can do and it’s linked to collision theory)
Factors that increase the rate of reaction need to increase number of collisions or increase the amount of energy particles collide with to be able to have more particles that surpass the minimum amount of energy needed for a reaction
What would increasing the number of collisions mean for the particles?
A greater proportion of reacting particles would collide.
Rate of reactions depend on four things, what are they? (hint: 4 factors of rate of reaction)
– temperature
– concentration of solution or pressure of gas
– surface area (which depends on the size of lumps of a solid)
– the presence of a catalyst
All four methods have one thing in common in how they increase the rate of reaction. What is that? (hint: QoL)
MORE FREQUENT SUCCESSFUL COLLISIONS. More successful and frequent collisions will increase rate of reactions.
