Chemical Kinetics Flashcards
________________ is the study of rate of chemical reactions. It includes the mechanism by which a reaction occurs.
Chemical Kinetics
-the speed at which a chemical reaction proceeds
RATE OF CHEMICAL REACTION
Change in concentration of either reactants or
products as a function of time.
Rate of a reaction
This expresses the relationship of the rate of a reaction to the rate constant and the concentrations of the reactants raised to some powers.
Rate Law
Overall reaction order is the _____ of the
powers to which all reactant concentrations
appearing in the rate law are raised.
sum
x and y must be determined ___________________
experimentally
True or False
The order of a reactant is NOT generally
related to its stoichiometric coefficient in a
balanced chemical equation
True
What theory is this?
For a chemical reaction to
proceed:
1. There should be an effective
collision between the
reactant particles;
2. Collision must have the
correct orientation; and
3. Collision must have enough
energy (activation energy)
The Collision
Theory
if the temperature of a
reaction system is
increased, the ___________ _______ of the particles is
also increased.
Average speed
an increase in reactant concentration
means that there will be more ___________.
collisions
The greater the ________________, the greater
frequency of collisions
between reacting
particles; hence, the
faster the reaction
surface area
The minimum amount of energy for a reaction to take place
Activation energy
