Reaction Rates Flashcards
Collision theory states that a reaction won’t take place unless particles…..
Collide in the correct orientation
Collide with( enough energy) activation energy
What is activation energy
The minimum energy required for the reaction to occur
Calculation for rate of reaction
Rate of reaction = change in conc / time
What does increasing concentration do to the rate
What does increasing pressure do to the rate
What does increasing Surface Area do to rate
What does increasing temperature do to rate
How to measure rate of reaction
Continuous monitoring method
Explain the continuous monitoring method
Measure either the amount of product formed or reactant lost continuously throughout a reaction
Measure volume of gas formed , or mass lost during a reaction / mass of gas formed
How do u measure the volume of gas produced
Gas syringe
What is the other way to measure volume of gas produced
Measuring cylinder
WHAT does THE MAXWELL BOLTZAMNN DISTRIBUTION explain
That the particles in a reaction undergo random collisions and so energy is transferred between colliding particles so there will be particles with different energies
DARW AND LABEL A MBD
WHAT ARE THE KEY POINTS from MBD
What is Ea
Activation energy
what happens to the MBD when temperature of a reaction is increased and why
Top of Curve dropped and moved right slightly tjis is because more particles have energy greater than Ea so rate of reaction greater, more frequent successful collisions
What is a catalyst
Speeds up rate of reaction
How does a catalyst work
Provides and alternative route which has a lower Ea
What are the 2 types of catalyst
Heterogenous and homogeneous
What are heterogenous catalysts
Catalyst which are in a different state to reactants
What are homogenous catalysts
Catalyst that are in the same state as reactants
