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Specific Heat Capacity
Aim:
To find the specific heat capacity of unknown metal and identify the metal
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Data:
Raw Data
Mass of the metal block= 100g or 0
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Specific heat capacity of water= 4186 J
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K-1

Trial

1
2
3

Initial temperature of water in
calorimeter
t/°C
t≈±0
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5°C
34
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5°C
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25±0
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1)c(64±1)
(0
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1)c(64±1
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75±29%)(4186) = (0
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56%)
(11511
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8) = c (64±1
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5±0
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56%)
c= 1798
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1 J
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K-1
Conclusion
As calculated, the specific heat capacity of this metal is 1798
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1 J
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K-1
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The heat energy lost by the mass was converted to heat energy gained by the water in
the calorimeter and hence the formula mwcw∆Tw = mmcm∆Tm was used to calculate the specific heat
capacity of the metal mass
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The mass of the water used in the experiment was 2
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However, the temperature gained by water was almost 1/6th
of that lost by metal
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The metal with a specific heat capacity closest to this value is Beryllium with c= 1820 J
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K-1
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6 J
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K-1 and
1798
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kg-1
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What is the underlying Physics:
We used the formula for heat ∆𝑄 = 𝑚𝑐∆𝑇 to find the specific heat capacity of the metal block
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Thermal energy is the non-mechanical transfer of energy between a
system and its surroundings and in this experiment, thermal energy was transferred from water to
mass, and from mass to water through convection
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Evaluating the Data
- Metal mass (100 g) used in the experiment lost 64°C in the experiment
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e
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5 times that of metal) gained 11°C (i
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almost 1/6th of temperature
lost by the metal)
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- This fact is proved by the final calculation as specific heat capacity of water is 4186 J
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K-1
and that of the metal is 1798
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1 J
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K-1
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5°C
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Evaluating techniques
- While transferring the metal from the beaker to the calorimeter, there could have been loss
of thermal energy to the surroundings, which might have affected the values and the results
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Improvements
- Using an insulated calorimeter to minimize loss of heat to the surroundings
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Using high precision instruments such as a digital thermometer to reduce uncertainty
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Using a spherical shape of metal so that ration of surface area to mass is least as this will
minimize the heat lost during transfer from one container to the next
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Using
insulated
calorimeter

Less loss of
heat to
surroundings

More
accurate data
values

More
accurate
results

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