7. OBJECTIVES:
At the end of 60-minute discussion, you are expected to:
State the collision theory
Explain the effects of concentration, temperature, &
particle size on the rate of reaction
Define catalyst and describe how it affects reaction rate
8.
9. a process that leads to the
transformation of one set
of chemical substances to another.
usually characterized by
a chemical change, and they yield
one or more products, which
usually have properties different
from the reactants.
17. States that the rate of
chemical reaction is
directly proportional to the
number of collisions
between reactants.
18. The change in the
concentration of reactant
or product per unit o time.
-speed in which new
particles form
19. -speed in which new particles
form
N2 + O2 NO + NO
Bonds between atoms of the
reactants (N2 and O2 are
broken and new bonds (NO)
form
20. A chemical reactions occur when
collisions between molecules have
sufficient energy to break bonds in
the reactants
If the molecules collide with
proper orientation
21. A chemical reactions occur when
collisions between molecules have
sufficient energy to break bonds in
the reactants
If the molecules collide with
proper orientation
22. Activation energy is the
energy required to proceed
and reach the transition
state.
23. Reaction rate is intuitively
defines as how quickly or slowly
a reaction takes place.
25. If the temperature is increased:
* the reactant particles move more
quickly
* the reactant particles have more
kinetic energy
The reaction rate increases
26. Larger surface area would
have a larger space of
collision between particles
of a reaction.
27.
28. If the concentration is
increased:
the reactant particles
become more crowded
there is a greater chance of
the particles colliding
The rate of reaction
increases
