Rate of reaction: The
decrease in the amount of reactant used or the increase in the amount of
product obtained in a given time. The rate of reaction measures how much
product is formed in a certain time. Some reactions are slow, such as rusting,
and some are fast, like burning.
Average of reaction: The
average value of the rate of reaction within a specified period of time.
Rate of reaction at a given
time: The actual rate of reaction at a specific time.
Collision theory: A model
that explains reaction rate as the result of particles colliding with a certain
minimum energy.
Effective collision: A
collision in which the particles meet with sufficient energy and an orientation
that allows them to react.
The rate of reaction
decreases with the increase of time.
The rate of reaction
increases as the total surface area of a solid reactant increases.
The rate of reaction
increases as the concentration of reactant increases.
The rate of reaction
increases as the temperature of a reactant increases.
The rate of reaction
increases when a positive catalyst is used and the rate of reaction increases
when the amount of a positive amount used increases.
Catalyst: A substance which
alters the rate of a chemical reaction while it remains chemically unchanged at
the end of the reaction.
