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Combustion Reactions. Combustion Reactions. Aim: To find out how much heat is in a candle. One way to find out is to measure how much wax is burnt while raising the temperature of water in a test tube by say 20 0 C. Materials & Method. Tea light candles Thermometer

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Combustion reactions1
Combustion Reactions

Aim:

  • To find out how much heat is in a candle.

  • One way to find out is to measure how much wax is burnt while raising the temperature of water in a test tube by say 200C.


Materials method
Materials & Method

  • Tea light candles

  • Thermometer

  • Retort stands with two clamps

  • Measure and record the mass of the candle.

  • Set the equipment up as shown and measure and record the temperature of the water.

  • Light the candle, and wait for the temperature to rise 10 or 20 0C.

  • Measure and record the new mass of the candle.

  • Calculate the change in mass of the candle.

  • Divide the temperature rise by the change in mass to give a value with units of 0C/g wax

  • Compare your results with the rest of the class.

    Safety Considerations


Results
Results

Other Observations


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