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Listening Quiz: Thuyết Trình Kết Quả Sàng Lọc Xúc Tác – Medium Level
Th10 29, 2024
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bởi
Anna Phạm
trong
Tiếng Anh Hóa Học (English for Chemistry)
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1.
What is the main purpose of Sarah’s presentation?
To compare the performance of several catalysts
To explain how to build a new reactor
To announce a change in the test temperature
To discuss problems with the test equipment
Explanation:
Sarah presents the results of testing five catalysts and compares their yield, rate, activity, and stability.
2.
Which catalyst gave the highest yield and fastest rate?
Catalyst B
Catalyst D
Catalyst A
Catalyst C
Explanation:
Sarah says that Catalyst C gave the highest yield and fastest rate.
3.
At what temperature were all of the tests performed?
60 degrees Celsius
80 degrees Celsius
90 degrees Celsius
70 degrees Celsius
Explanation:
Sarah states that all tests were done at 80 degrees Celsius.
4.
What can be inferred about Catalysts D and E?
They were not as effective as the others
They performed better than Catalyst C
They were tested at a different temperature
They were the most stable catalysts
Explanation:
Sarah says D and E had poor performance and low stability, so they were less effective than the others.
5.
What will Sarah probably do next?
Stop the project because the results were inconclusive
Prepare the report and scale up Catalyst C for further testing
Choose Catalysts A and B for the final reaction
Retest all five catalysts at a lower temperature
Explanation:
Michael asks for the report, and Sarah says they should scale up Catalyst C for further testing, so preparing the report and moving forward with Catalyst C are the next steps.
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