Chemical Kinetics

Question 1

study of the rate at
which chemical
reactions occur and,
in effect, their
mechanisms

Answer 1

Chemical Kinetics

Question 2

the rate over the entirety of the reaction

Answer 2

Average rate

Question 3

the rate rate at a specific time in a reaction)

Answer 3

Instantaneous rate

Question 4

instantaneous rate at the
beginning of a reaction

Answer 4

Initial rate

Question 5

For a chemical reaction to occur and
products to form, the reactants must
________ and ___-_____ with each other.

Answer 5

interact and collide

Question 6

is also concerned about the probability of
particles colliding within a given space given a specific set of conditions.

Answer 6

Collision theory

Question 7

conditions that must be met in collision theory

Answer 7

1. The interacting/colliding particles must have
   the proper orientation.
2. The interacting/colliding particles must
   collide with sufficient energy.

Question 8

Rate of reaction will be _________ at low activation energy

Answer 8

Faster

Question 9

Rate of reaction will be _________ at high activation energy

Answer 9

Slower

Question 10

For a chemical reaction to occur, the interacting
particles must collide with the ___________ and _________

Answer 10

right orientation and sufficient energy

Question 11

Factors that Affect Reaction Rate

Answer 11

1. Concentration
2. Surface Area
3. Temperature
4. Catalysts and Inhibitors

Question 12

refers to the number of particles
in a given space/volume.

Answer 12

Concentration

Question 13

refers to the area that is
exposed and available for collisions. We can
alter reaction rate by changing this

Answer 13

Surface area

Question 14

The average speed (kinetic energy) of particles is related to the

Answer 14

Temperature

Question 15

are chemical substances that can
increase or decrease the rate of a chemical reaction, respectively.

Answer 15

Catalysts and inhibitors

Question 16

Provides information on
the rate of a reaction as a
function of concentration
and temperature.

Answer 16

Rate law

Question 17

What do we base the rate law on?

Answer 17

Initials concentration

Question 18

We need to use__________to
determine reaction orders
and rate constants!

Answer 18

initial rates

Question 19

What would happen to the rate of reaction when the concentration of reactant is doubled in first order?

Answer 19

Doubled

Question 20

What would happen to the rate of reaction when the concentration of reactant is doubled in 2nd order?

Answer 20

Quadruple

Question 21

What would happen to the rate of reaction when the concentration of reactant is doubled in zero order?

Answer 21

remains the same

Question 21

In a fast reaction, k is

Answer 21

Large

Question 21

In a slow reaction, k is

Answer 21

small

Question 22

gives us the relationship
between reaction rate
and concentrations of
the reactants

Answer 22

Reaction rate, k

Question 22

units of zero, first and 2nd order

Answer 22

M s-1
s-1
M-1s-1

Question 24

The units of k depend on the

Answer 24

reaction order

Question 25

Integrated rate laws equations for zero, first, second order, and 3rd order?

Answer 25

[𝐴]𝑡−[𝐴]0= −𝑘t
𝑙𝑛 [𝐴]0/ [𝐴]𝑡 = 𝑘t
1/[𝐴]𝑡 - 1/ [𝐴]0 = 𝑘t
1/2[𝐴]𝑡^2 - 1/2[𝐴]0^2 = 𝑘t

Question 26

What effect does temperature have
on the rate constant of a reaction?

Answer 26

Temp increases, rate constant increases

Question 27

noted that temperature
has a profound effect on
the rates of reaction
generally increased in T means increased in k

Answer 27

Arrhenius Equation

Question 28

The working equation of Arrhenius Equation

Answer 28

ln k1/k2 =