Process Diagram

Band 8+: The diagram below shows how ethanol fule is produced from corns.

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Image for topic: The diagram below shows how ethanol fule is produced from corns.

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The image delineates the production of ethanol fuel from corn via a multi-step process: Corn undergoes Storing, then Milling, followed by Cooking (4 hours) with water added, leading to Fermenting (48 hours); subsequent separation yields a Liquid and Solid product, the Liquid is Purified (5 hours), followed by more Storing, and ends with Transporting.

Given the complexity of the image, the above description may not be entirely accurate.

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Overall, ethanol production involves several stages, beginning with the storage of corn and ending with the transportation of the final fuel product. The process includes mechanical, chemical, and purification steps, with fermentation being the longest stage.

At the first stage, harvested corn is stored and then milled into smaller particles. Water is added to the milled corn, after which the mixture is cooked for four hours. This cooked substance is then transferred to fermentation tanks, where it is left to ferment for 48 hours.

Following fermentation, the mixture is separated into two components: solid by-products and liquid. The solid product is removed, while the liquid continues to the next stage. This liquid is purified for five hours in order to produce ethanol fuel. Finally, the purified ethanol is stored and then transported to be used as fuel.

Word Count: 137

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Overall Band Score

8.5

(+/- 0.5)

Vocabulary Complexity:
C1 - Intricate
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Grammar Mistakes: N/A

Vocabulary Repetition:

ethanol: 3

fermentation: 3

liquid: 3

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Task Response

The report comprehensively and accurately describes the process of ethanol production from corn, covering all stages from storage to transportation. The description is clear, well-organized, and easy to follow, with appropriate attention to detail. The report effectively summarizes the key steps and accurately represents the information provided in the diagram. The report falls short of the required 150 words.

Coherence & Cohesion

The report is exceptionally coherent and well-organized. The stages of ethanol production are clearly presented in a logical sequence, making the information easy to follow. The use of cohesive devices such as 'Overall,' 'At the first stage,' 'Following fermentation,' and 'Finally' effectively guides the reader through the process. Paragraphing is skillfully managed, with each paragraph focusing on a distinct phase of the production cycle.

Lexical Resource

The report demonstrates a wide range of vocabulary used accurately and appropriately. Terms such as 'milled,' 'fermentation,' 'purified,' and 'by-products' are used effectively to describe the process. The language is precise and contributes to a clear understanding of the ethanol production method. The writing exhibits a natural and sophisticated control of lexical features.

Grammatical Range & Accuracy

The report exhibits a wide range of grammatical structures used with full flexibility and control. The sentences are well-constructed, and punctuation is used correctly throughout. The absence of grammatical errors enhances the clarity and readability of the report, making it easy to understand the information presented.

Answers On The Same Topic:

The diagram below shows how ethanol fule is produced from corns.

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