ethanol

Question 1

how is ethanol made by fermenting sugar

Answer 1

enzymes in yeast converts glucose into ethanol and carbon dioxide

Question 2

how do you test for carbon dioxide

Answer 2

lime water

cloudy: carbon dioxide

Question 3

what is ethanol used for

Answer 3

alcoholic drinks
perfume
fuel
cleaning product

Question 4

how do you make ethanol from ethane (HYDRATION)

Answer 4

Heat ethene and steam over a catalyst.

Question 5

what are the advantages of using fermentation over hydration

Answer 5

• plants are renewable

- cheaper

Question 6

what are the advantages of using hydration over fermentation

Answer 6

• continuous process
• produces no waste products
• CO(2) is given off in fermentation

Question 7

what is the formula for ethanol

Answer 7

C(2)H(5)OH

Question 8

what are he benefits of using hydrogen as a fuel

Answer 8

water is the only product in combustion so there are no pollutants made

it burns well with a very clean flame

water is a huge natural source of hydrogen

Question 9

what are the drawbacks of using hydrogen

Answer 9

when hydrogen mixed with air and is ignited it its explosive

so safety concerns with leaks or accidents

to get the hygren from water use electrolysis which must be supplied by renewable source

it takes up more volume than liquids