8
AssignmentMultiple Select

Lab: Reaction Rate

Question 8 • Chemistry - SC3210 A-CR

Suppose that a student did not stop the timer as soon as bubbling stopped during a test at 40°C. Check all possible resulting errors.Measurements at all temperatures will have errors.The reaction time will be too long.The reaction time will be too short.The reaction time will resemble the reaction time for a higher temperature.The reaction time will resemble the reaction time for a lower temperature.

Answer
A
Measurements at all temperatures will have errors.
B
The reaction time will be too long.
C
The reaction time will be too short.
D
The reaction time will resemble the reaction time for a higher temperature.
E
The reaction time will resemble the reaction time for a lower temperature.

Explanation

If the timer keeps running after bubbling stops, the recorded reaction time includes extra time, so it will be too long. A longer reaction time corresponds to a slower reaction, like one expected at a lower temperature. This affects the measurement at 40°C, not measurements at every temperature.

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