AIM: To find the specific heat capacity of a solid by method of mixtures.

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To Measure Specific Heat Capacity of a solid by method of mixtures

Date: - February 2, 2009

IB Topic: - Core 3.2.1

Assessment Criteria:-

         Data Collection & Processing                                    Conclusion & Evaluation

AIM: To find the specific heat capacity of a solid by method of mixtures.

Materials Required: calorimeter, Thermometer (110 ˚ c), stopwatch,  

                                              weighing machine.

Background Theory:

  1. Specific heat capacity of a substance is the amount of energy required to raise the temperature of 1 Kg of that substance by 1˚ c.
  2. Thermal equilibrium is a state when the amount of heat given by one body to another is equal to the amount of heat energy given by second body to the first and the temperatures remain constant.

Data Collection:

Least count of Thermometer: 1°C

Uncertainty of Thermometer: 0.5°C

Least count of Weighing Scale: 0.1g = 0.0001kg

Uncertainty of Weighing Scale: 0.1g = 0.0001kg

Mass of metal: 24.6 ± 0.0001 kg

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Mass of copper calorimeter: 42.5 ± 0.0001 kg

Specific Heat Capacity of water: 4186 J kg-1 °C-1

Specific Heat Capacity of copper: 390 J kg-1 °C-1

Observation:

Case 1:

Mass of Water: 0.05 ± 0.0001 kg

Initial Temperature of Water and Calorimeter: 22 ± 0.5 °C

Initial Temperature of Metal: 95 ± 0.5 °C

Final Temperature of the mixture: 25 ± 0.5 °C

Case 2:

Mass of Water: 0.08 ± 0.0001 kg

Initial Temperature of Water and Calorimeter: 24 ± 0.5 °C

Initial Temperature of Metal: 95 ± 0.5 °C

Final Temperature of the mixture: 26 ± 0.5 ...

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