Kinetics 1

Question 1

activation energy

Answer 1

the smallest amount of energy required to start a reaction

Question 2

rate of reaction

Answer 2

The rate of change of concentration of reactants or products with time

Question 3

how does temperature affect rate of reaction

Answer 3

-Particles have more kinetic energy as temp
increases
-More particles will have activation energy
-More frequent successful collisions
-Greater proportion of collisions are
successful (more energy)

Question 4

how does concentration affect rate of reaction

Answer 4

-More particles per unit volume
-More frequent successful collisions

Question 5

how does pressure affect rate of reaction

Answer 5

-More particles per unit volume
-More frequent successful collisions

Question 6

how does surface area affect rate of reaction

Answer 6

-More collision as more exposed particles
-Greater frequency of successful collisions

Question 7

how does a catalyst affect rate of reaction

Answer 7

-Provides an alternative pathway for the
reaction
-Lower activation energy
-Greater proportion of successful collisions

Question 8

Maxwell-Boltzmann Distribution

Answer 8

displays the spread of molecular energies

Question 9

what does total area under a maxwell-boltzmann distribution curve show

Answer 9

the total number of molecules

Question 10

area right of activation energy line on maxwell-boltzmann curve show

Answer 10

particles with sufficient activation energy to react

Question 11

what must remain the same when redrawing maxwell-boltzmann curves under different conditions

Answer 11

area under the curve