Process Diagram

Band 8+: You should spend about 20 minutes on this task. The diagram below shows how ethanol fuel is produced from corn. Summarise the information by selecting and reporting the main features and make comparisons where relevant. You should write at least 150 words.

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Image for topic: You should spend about 20 minutes on this task. The diagram below shows how ethanol fuel is produced from corn. Summarise the information by selecting and reporting the main features and make comparisons where relevant. You should write at least 150 words.

Our system will evaluate the answer based on this AI-generated description.

The image depicts a flowchart outlining the ethanol fuel production process from corn: Corn -> Storing -> Milling -> Cooking (4 hours, requires Water) -> Fermenting (48 hours) -> Separating (into Liquid for Purifying Ethanol (5 hours) and Solid by-product) -> Storing -> Transporting.

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

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Note: Both the topic and the answer were created by one of our users.

The diagram illustrates the process of producing ethanol fuel from corn.

Overall, there are several stages in the production of ethanol fuel, starting with storing and milling corn and ending with transporting the final product. In addition, water is added during the cooking stage, and the process includes fermenting and purifying ethanol.

First, corn is stored before it is milled into smaller pieces. After that, the corn is cooked for four hours, and water is added during this stage. Next, the cooked mixture is fermented for 48 hours.

After the fermentation process, the material is separated into two parts: a solid by-product and a liquid. The liquid part is then purified for five hours to produce ethanol fuel.

Finally, the purified ethanol is stored again before being transported to different places for use. Overall, fermentation takes the longest time in the process, while cooking and purifying require fewer hours.

Word Count: 149

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Overall Band Score

8.5

(+/- 0.5)

Vocabulary Complexity:
C1 - Intricate
Strive to incorporate even richer and more precise language.

Grammar Mistakes: N/A

Vocabulary Repetition:

process: 4

ethanol: 4

hours: 3

Try using synonyms for the above words

Task Response

The report fully satisfies the requirements of the task. It provides a clear overview of the process, accurately describes all stages in a logical sequence, and includes relevant details such as time durations and inputs (water). The comparison of time durations in the final sentence is an excellent way to highlight key features. No improvements are necessary as the response is comprehensive and well-structured. The report falls short of the required 150 words.

Coherence & Cohesion

The report is exceptionally well-organized. The progression from the introduction to the overview, and then through the chronological stages of the process, is logical and effortless to follow. Cohesive devices such as 'First', 'After that', 'Next', and 'Finally' are used effectively to guide the reader through the flowchart without being repetitive or intrusive.

Lexical Resource

The vocabulary used is precise, appropriate, and natural. Terms such as 'milled into smaller pieces', 'solid by-product', and 'purified' demonstrate a strong command of the lexical requirements for describing a technical process. There is no unnecessary repetition, and the word choices accurately reflect the information provided in the diagram.

Grammatical Range & Accuracy

The grammatical structures are varied and used with full control. The writer successfully employs both active and passive voices (e.g., 'corn is stored', 'water is added'), which is essential for describing a manufacturing process. Punctuation is accurate, and there are no discernible errors in sentence structure or tense usage.

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