The Effect of Temperature on the Rate of Reaction Essay

The Effect of Temperature on the Rate of Reaction Essay

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The Effect of Temperature on the Rate of Reaction

Aim-We is going to investigate how temperature effects the rate of
reaction when we use a Magnesium Ribbon and dissolve it in
Hydrochloric Acid.

Different Variables-There are four different variables that effect the
rate of reaction, surface area, concentration, temperature and
catalysts. Here is some information on each variable with diagrams.

How does surface area effect rate of reaction?

In a substance the rate of reaction will be quicker if it has a large
surface area. However, if it has a small surface area the rate of
reaction is much slower. Rate of Reaction is much faster if the
surface area is larger because much more of the reactant is exposed so
particles will be able to collide with it. A greater collision rate
means a faster reaction.

How does concentration effect the rate of reaction?

If more particles are added to a reactant, the concentration will
become higher. If a concentration is higher, the rate of reaction will
increase because there are more particles to collide.

How does temperature effect rate of reaction?

If a temperature is increased in a reaction the particles will be
given more kinetic energy to collide. As a result the rate of reaction
will increase because the particles will collide more frequently.

How do catalysts effect the rate of reaction?

Catalysts are added to chemical reactions to speed them up. Therefore
the rate of reaction is faster. Catalysts work by reducing the
activation energy to a minimum so the rate of reaction will be faster.
The rate of reaction also increases with the smallest amount of energy
when usi...


... middle of paper ...


... When a catalyst undergoes collision with the reactant molecules, less
energy is required for the chemical change to take place, and hence

more collisions have sufficient energy for reaction to occur. The
reaction

rate therefore increases.

Catalyst

Substance that alters the speed of, or makes possible, a chemical or
biochemical reaction but remains unchanged at the end of the reaction.

Concentration

In chemistry, the amount of a substance (solute) present in a
specified amount of a solution. Either amount may be specified as a
mass or a volume (liquids only).

The term also refers to the process of increasing the concentration of
a

solution by removing some of the substance (solvent) in which the
solute is dissolved. In a concentrated solution, the solute is present
in large quantities.

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The Effect of Temperature on the Rate of Reaction Essay

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