Alcohols Flashcards
Ethanol molecular formula
C2H5OH
What can ethanol be used for
Fuel (biofuel)
Two ways to make ethanol
Fermentation and Hydration
Equation for fermentation
CO2 not O2
Conditions for fermentation
Raw material used in fermentation
Carbohydrate crops
Raw material type used in fermentation
Carbohydrate crops, renewable
What type of process is fermentation
Batch
Reaction rate of fermentation
Slow
Purity of ethanol produces in fermentation
Impure - must be purifies by fractional distillation
Reaction equation for hydration to make ethanol
Conditions for hydration
Raw material used in hydration
Crude oil
Type of raw material used in hydration
Crude oil, non-renewable
What type of process is hydration
Continuous
Reaction rate of hydration
Fast
Purity of ethanol in hydration
Pure, no need for fractional distillation
Compare fermentation to hydration
What does carbon neutral mean
Activity which produced No net carbon emissions to the atmosphere
It releases the same amount of CO2 when it was burned as was taken in from the atmosphere when the plants grew and photosynthesised.
Dehydration of alcohol mechanism
Conditions for the dehydration of alcohols
Hot, concentrated H2SO4/H3PO4
Equations to prove fermentation is carbon neutral
