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METHODOLOGY
This section consists of the materials used and procedures done throughout the laboratory
experiment of the students. It is in line with the method of calculating the specific heat of the
certain object materials selected by them.
Materials/Equipment:
Hot Plate
Crucible Tongs
Wire Gauze
250mL Beaker
Beaker Holder
Alcohol Thermometer
Crucible
Triple beam balance
Selected materials
3 Styro Cup
3 Lids for cups
Sterile Gloves
Lab Coat
Preparation of Materials and Samples
Most resources used by the students were borrowed from the College of Sciencesโ
Laboratory as advised by their instructor especially those of can be seen in laboratory. While the
Styro cups and the lids were provided by the experimenters. Furthermore, after gathering the
things needed, they have prepared the 3 (three) Styro cups wherein those were labeled as
Sample 1, Sample 2, and Sample 3 and were poured with 20 mL of tap water each measuring
30 ยฐC of heat. Then, they also prepared the 3 (three) selected materials by them such as the coin
as sample 1, wood as sample 2, and the stone as sample 3 and using the triple beam balance,
they recorded the mass of each item. Last thing they did was to start putting water in the 250 mL
beaker into a boil, specifically at 100ยฐC as a preparation for the next steps. In doing that, they put
the Wire Gauze onto the Hot plate and powered it to start the heat. Using the beaker holder, they
then placed the beaker with water on top of the gauze.
Performing the Experiment
After reaching the boiling point of water, the students started the experiment already. First,
with the use of crucible tongs, they put the coin (sample 1) into the beaker for 5 (five) minutes
while it is still boiling. After this, they transferred the coin inside the sample 1 styro cup and
recorded the change in temperature of the water. The said procedures were as well done for the
2 (two) more samples which are the wood (sample 2) and the stone (sample 3).
Computation of Specific Heat
The given figures below are measures and formulas needed for the calculation of specific
heat:
Water heat = 4.184 J/gยฐC
Boiling point of water = 100 ยฐC
Mass:
Coin โ 5.7 g
Wood โ 0.3 g
Stone โ 25.4 g
Volume
Sample 1 styro cup โ 20 mL of water
Sample 2 styro cup โ 20 mL of water
Sample 3 styro cup โ 20 mL of water
Temperature
Sample 1 โ 30 ยฐC + (coin = 32ยฐC)
Sample 2 โ 30 ยฐC + (wood = 32 ยฐC)
Sample 3 โ 30 ยฐC + (stone = 44.5ยฐC)
Sample 2 (Wood)
ยฐC)
32 ยฐC โ 30 ยฐC
โ( 0. 3 ๐)( 32 ยฐC โ 100 ยฐC)
ยฐC) ( 2 ยฐC)
โ( 0. 3 ๐)(โ 68 ยฐC)
20. 4 ๐ยฐC
๐ ๐๐๐๐๐๐๐ โ๐๐๐ก ๐๐ ๐ค๐๐๐ = 8. 20 ๐ฝ/๐ยฐC
Sample 3 (Stone)
ยฐC) ( 44. 5 ยฐC โ 30 ยฐC)
44. 5 ยฐC โ 100 ยฐC
ยฐC)
14. 5 ยฐC
โ( 5. 7 ๐)(โ 68 ยฐC)
1409. 7 ๐ยฐC
๐ ๐๐๐๐๐๐๐ โ๐๐๐ก ๐๐ ๐ ๐ก๐๐๐ = 0. 86 ๐ฝ/๐ยฐC
The experiment was considered done by the students after doing all of the procedures made by
them starting from the preparation of materials until the computation of specific heat.
