Question detail
Define fermentation and hydration of ethene as methods for producing ethanol. What is the key difference between these two methods?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Alcohols
Question
Define fermentation and hydration of ethene as methods for producing ethanol. What is the key difference between these two methods?
Answer
Fermentation is a biological process where yeast converts sugars into ethanol and carbon dioxide under anaerobic conditions. Hydration of ethene involves the addition of water to ethene in the presence of an acid catalyst to produce ethanol. The key difference is that fermentation is a biological process, while hydration of ethene is a chemical reaction that requires specific conditions.
Explanation
This answer is strong because it clearly defines both fermentation and hydration of ethene, identifies the key difference as the nature of the processes, and explains when each method is applicable. Fermentation is used for producing ethanol from renewable resources, while hydration of ethene is a synthetic method that can produce ethanol from non-renewable sources.
Common mistake
Fermentation vs Hydration of Ethene
Students often confuse fermentation with hydration of ethene, thinking they are the same process for producing ethanol.
Fermentation is a biological process using yeast to convert sugars into ethanol and carbon dioxide, typically at lower temperatures and without the need for high pressure. In contrast, hydration of ethene is a chemical reaction where ethene reacts with steam in the presence of a catalyst at high temperature and pressure. Understanding these differences helps in selecting the appropriate method based on the desired conditions and scale of production.
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