Kinetics

Question 1

What is a rate ?

Answer 1

a measure of change
the speed at which a chemical reaction proceeds

Question 2

What is exponential growth ?

Answer 2

Exponential growth is a pattern of data that shows greater increases with passing time, creating the curve of an exponential function.

Question 3

How to Quantify an increasing rate ?

Answer 3

exponential growth;a geometric progression

Question 4

How to measure the rate of biochemical reaction ?

Answer 4

measure chemical concentration
measuring the disappearance of a reactant or the appearance of a product over time
We plot the result :

Question 5

Over time what happens to the reaction rate ?

Answer 5

decreases over time
because reactants are running out-conc is decreasing over time
RR linked to conc of reacting species

Question 6

The rate law ?

Answer 6

is an equation which precisely states the link between the reaction rate and the concentration of the reactants
it describe the shape of our concentrations

Question 7

What is linear growth ?

Answer 7

arithmetic progression
constant difference
constant rate
rate = k
zero-order reaction

Question 8

What is non-linear growth ?

Answer 8

Geometric progression
Constant ratio
Increasing difference
Increasing rate
“exponential growth”
A first-order process
Rate= k x c

Question 9

What is really k ?

Answer 9

growth curves are smooth
rate is constantly increasing

Question 10

How does C depends on t ?

Answer 10

c=2^t

Question 11

How does c depend on doubling time ?

Answer 11

c=2t/2
c=2t/t2
doubling time=t2 so time taken for c to increase by factor of 2

Question 12

How does c depend on exponential base ?

Answer 12

doubling time is intuitive-but not always the natural choice
we cant choose a different base for each process