| Date | May 2018 | Marks available | 1 | Reference code | 18M.1.sl.TZ1.13 |
| Level | SL | Paper | 1 | Time zone | TZ1 |
| Command term | Predict | Question number | 13 | Adapted from | N/A |
Question
The enthalpy of combustion of ethanol is determined by heating a known mass of tap water in a glass beaker with a flame of burning ethanol.
Which will lead to the greatest error in the final result?
A. Assuming the density of tap water is 1.0 g cm−3
B. Assuming all the energy from the combustion will heat the water
C. Assuming the specific heat capacity of the tap water is 4.18 J g−1 K−1
D. Assuming the specific heat capacity of the beaker is negligible
Markscheme
B
Examiners report
[N/A]
Syllabus sections
Core » Topic 11: Measurement and data processing » 11.1 Uncertainties and errors in measurement and results
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