
For a firstorder reaction, the halflife is independent of hte ___. Each successive halflife is __.
 initial concentration
 an equal period of time

Decay rate
DeltaN/ deltat= kN

A first order reaction exhibits an __ of the reactant concentration.
exponential decay

What is the plot of ln[A]? Slope?
 a first order reaction exhibits a linear decay of the logarithm fo the reactant concentration (however, an exponential decay occurs without the ln and just the reactant concentration)
 the slope is k

For a second order reaction, what is theplot of ln[NO2]?
it is a curve and not a straightline fit; therefore, it's not a straightline fit

Plotting 1/[NO2] versus time gives a __, meaning __.
 straightline fit
 secondorder teaction

What is the slope for a second order reaction?
k

For a secondorder reaction, the halflife is __.
dependent on the initial concentration

Each successive halflife of a secondorder reaction is __.
twice as long as the preceding one

For a zerothreaction, the rate is __.
independent of the concentrtion of the reactant

A plot of [A] versus time for a zeroth reaction will give __.
a straight line fit and hte slope willl be k

What is a reaction mechanism?
a sequence of reaction steps that describes the pathway from reactants to products

What is an elementary reaction (step)?
a single step in a reactioin mechanism

What does an elementary reaction describe?
an individual molecular event

What does the overall reaction describe?
the reaction stoichiometry and is the summation of elementary reactions

What is a reactive intermediate?
is formed in one step adn consumed in a subsequent step

What are the units of a second order reaction?
1/MS

what is the rate equal to in a zerothorder reaction?
k because the other value drops out since it is just one

What is the slope equal to in a zeroth order reaction?
k since its decreasing

In a zero order, what doesn't matter?
the initial concentration

