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NAME MATRIC NUMBER
NUR HAYATI BINTI YUSOFF D20101037419
NORFARRAHDILAH BINTI AMIR D20101037438

Engage
• Does exothermic nature of
the reaction has an effect
on the overall temperature
of the reaction?

Concept
Rate of reaction is the speed at
which a reaction happens. If a
reaction has a low rate it means the
molecules combine at a slower
speed than a reaction with a high
rate. The factors that affect the rate
of reaction are surface area,
temperature, catalyst and
concentration of the reactants.

The relationship
between
temperature and
rate of reaction.

Apparatus
• DrDAQ data logger connected
to a PC
• Two external temperature
probes (DD100)
• I M Hydrochloric acid
• 1 cm lengths of magnesium
ribbon
• Two boiling tubes
• Electric water bath or large
beaker filled with water at 50

Procedure

Figure 1: Apparatus set up

1. 20 cm3 hydrochloric acid is
measured and placed in two
test tubes.
2. The hydrochloric acid is
heated to 50 C in a water
bath.
3. The temperature in both
test tubes is monitored
using the DrDAQ.
4. 1cm of magnesium is added
to 1 of the test tubes.

Results
Magnesium + Hydrochloric acid →
Magnesium Chloride + Hydrogen
Mg(s) + 2HCl(aq) →
MgCl2(aq) + H2(g)

Graph time(sec) vs temperature (˚c)

Data Analysis
When we added the
magnesium to the test tube,
the temperature is affected
by the rate of reaction. The
time taken for the reaction to
occur is slower in the test
tube without the magnesium
ribbon..

Questions

• Did the magnesium reacting
effect the temperature of the
reaction?
• How much did the magnesium
reacting increase the
temperature?
• How will this affects the design
of the fair test for the reaction?

• Question 1 : Magnesium gives
effect to the temperature of
the reaction. The time taken
for the reaction to occur is
faster in the test tube with the
magnesium ribbon.
• Question 2 : 1 cm of
magnesium ribbon was used in
this experiment.
• Question 3 : The test is run in
the same environment to

Conclusion
• Data logger can be used in
teaching and learning to get
more accurate result.
• Magnesium ribbon can
increase the temperature of
the solution
• Temperature can changed by
the influence of reaction rate.
And reaction rate also are
affected by the temperature.

Enhance

Why this happen????

• The bread goes bad after been
left for a few days.
• The temperature is the main
factor why the bread become
like this.
• Within the time, the bread was
infected by the bacteria.
• This happen more quickly in
warm temperature, where as
cold interrupts and even stop
this process.
• This is the reason why food is

Steps to follow in preventing bacteria from
growing with the aid of temperature.
• At temperature between 5c and 63c c ,
bacteria on food can grow to a point
where they can make we ill. So, keep
the fridge at 5c or below.
• Keep the fridge door closed tightly, as
the temperature will rise if the door is
left open.
• Do not put hot food in the fridge as this
can raise the fridge temperature.
• Do not overpack the fridge, as this can
stop cool air from circulating freely and
the fridge may not keep the foods

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Investigating whether the temperature change during the rate

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