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It’s posh honesty Dire box on acid ETHANOL Tiny hoard In rotten fame Go clues Cloudier Install idiot Nag crick ………………. + Water Ethanol Complete these equations:

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Presentation on theme: "It’s posh honesty Dire box on acid ETHANOL Tiny hoard In rotten fame Go clues Cloudier Install idiot Nag crick ………………. + Water Ethanol Complete these equations:"— Presentation transcript:

1 It’s posh honesty Dire box on acid ETHANOL Tiny hoard In rotten fame Go clues Cloudier Install idiot Nag crick ………………. + Water Ethanol Complete these equations: C 2 H 4 + H 2 O.………….. Glucose Ethanol + ……………………… catalyst yeast ……………. 2 C 2 H 5 OH + ……………… yeast Rearrange the anagrams above to show where our ethanol comes from. Ethanol can be made by two processes, ethene reacting with ……………. under pressure in the presence of a ………………., or the fermentation of …………..…. using enzymes in ……………….. Word bank: catalyst, sugar, yeast, steam

2 Continuous / Batch Fermentation: Hydration: Delete wrong answer FermentationHydration Use the table to compare advantages and disadvantages of making ethanol by fermentation versus hydration Why is a continuous process better than a batch process for making a product in industry?……………………………………………………………………………… Fermentation produces CO 2 gas as a by-product. Fortunately it is a carbon neutral process. What does this mean?…………………………………………………………………………………………… Is ethanol a hydrocarbon? …………. Explain your answer ………………………… ……………………………………..... Draw the structural formula for ethanol C 2 H 5 OH below:

3 Answers

4 Photosynthesis Carbon dioxide ETHANOL Hydration Fermentation Glucose Crude oil Distillation Cracking Ethene + Water Ethanol Complete these equations: C 2 H 4 + H 2 O C 2 H 5 OH Glucose Ethanol + Carbon Dioxide catalyst yeast C 6 H 12 O 6 2 C 2 H 5 OH + 2CO 2 yeast Rearrange the anagrams above to show where our ethanol comes from. Ethanol can be made by two processes, ethene reacting with steam under pressure in the presence of a catalyst, or the fermentation of sugar using enzymes in yeast. Word bank: catalyst, sugar, yeast, steam

5 Batch Continuous Fermentation: Hydration: Delete wrong answer Use the table to compare advantages and disadvantages of making ethanol by fermentation versus hydration Why is a continuous process better than a batch process for making a product in industry? There is no downtime – a continuous process runs 24hrs a day, 7 days a week. Fermentation produces CO 2 gas as a by-product. Fortunately it is a carbon neutral process. What does this mean? Overall the level of CO 2 in the atmosphere remains unchanged as when the sugar cane is grown it removes carbon dioxide from the atmosphere by photosynthesis. Is ethanol a hydrocarbon? No Explain your answer Hydrocarbons contain hydrogen and carbon only. There is also an oxygen atom in ethanol. Draw the structural formula for ethanol C 2 H 5 OH below:


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