Flashcards
Measuring mass - spirit burners
Cards in this deck (10)
- 1Step 1.Using a measuring cylinder, measure out 150cm3 of H2O.
Pour the water into the beaker.
Record the initial temperature of the water to the nearest 0.5'c - 2Step 2.Add methanol to the spirit burner. Weigh the spirit burner containing the methanol.
- 3Step 3.Place the spirit burner under the beaker, light the burner and burn the liqid fuel whilst stirring the water with the thermometer.
- 4Step 4.After about 3 minutes extinguish the flame and immediately record the maximum 'c reached by the water
- 5Step 5.Re-weigh the spirit burner containing the methanol. Assume that the wick has not been burnt.
- 6Inaccuracies in experimental data (3)Heat lost to surroundings other than water
Incomplete combustion of methanol
Evaporation of methanol from the wick - 7How to prevent evaporation from wick?Weigh burner as soon as possible after flame extinguished
use spirit burner cover - 8How to prevent heat loss?Draught screen
- 9Incomplete combustion?Input O2 gas
- 10What can you determine from this experiment?Enthalpy change of a liquid fuel
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- User has deleted their subject information Flashcards on Measuring mass - spirit burners, created by Deleted user on 18/06/2018.
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- Deleted user · Jun 2018
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- Jun 18, 2018
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- Created by I Shouldn't be awake · Jun 3, 2018
- Copied by I Shouldn't be awake · Jun 18, 2018
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