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Butanol is a liquid fuel - Edexcel - GCSE Chemistry - Question 1 - 2023 - Paper 2
Question 1
Butanol is a liquid fuel. A student investigated the mass of butanol needed to increase the temperature of 100 cm³ of water by 1 °C. The student used the following... show full transcript
Worked Solution & Example Answer:Butanol is a liquid fuel - Edexcel - GCSE Chemistry - Question 1 - 2023 - Paper 2
Step 1
b) Identify two factors affecting the results of the experiment.
Answer
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Distance from beaker to spirit burner: A shorter distance can lead to more heat being transferred to the water.
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Size of wick: A larger wick may produce more heat compared to a smaller wick.
These factors can influence the efficiency of the heat transfer from the butanol to the water.
Step 2
c) Suggest two improvements to the method.
Answer
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Move the beaker closer to the spirit burner: This would reduce the energy lost to the surrounding environment, improving heat transfer.
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Use a metal calorimeter/beaker instead of glass: Metal has a higher thermal conductivity, allowing for more efficient heat transfer.