Combustion of alcohols (Edexcel GCSE Chemistry): Flashcards
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Practise the cards
13 cards from this deck
Why alcohols can be used as fuels
Why alcohols can be used as fuels
They release energy when burned
Crop fermented to produce ethanol fuel
Crop fermented to produce ethanol fuel
Sugar cane
What makes an alcohol a better fuel
What makes an alcohol a better fuel
It releases more energy when burned
How to test alcohol fuel efficiency
How to test alcohol fuel efficiency
Measure how much it heats a specific volume of water
Why wear goggles when testing alcohols
Why wear goggles when testing alcohols
Alcohol is hazardous to eyes and skin
Why use tongs with spirit burner
Why use tongs with spirit burner
It gets very hot
Control variable: water amount
Control variable: water amount
Use same mass or volume each time
Control variable: container height
Control variable: container height
Keep distance between flame and container consistent
Container used to hold water in test
Container used to hold water in test
Copper calorimeter
Volume of distilled water used
Volume of distilled water used
Temperature rise target in test
Temperature rise target in test
Less fuel needed to heat water means
Less fuel needed to heat water means
Better fuel
Why longer carbon chains release more energy
Why longer carbon chains release more energy
More bonds can be broken to release energy