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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 explain how to build a new reactor
To announce a change in the test temperature
To discuss problems with the test equipment
To compare the performance of several catalysts
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 D
Catalyst B
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?
70 degrees Celsius
60 degrees Celsius
80 degrees Celsius
90 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 the most stable catalysts
They were tested at a different temperature
They performed better than Catalyst C
They were not as effective as the others
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?
Choose Catalysts A and B for the final reaction
Stop the project because the results were inconclusive
Prepare the report and scale up Catalyst C for further testing
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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