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Separating Reaction Time From Detector Delay 4 questions
Separating Reaction Time From Detector Delay
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Two teams model the same gas-forming reaction at the same temperature and with identical starting amounts. Their sensors report cumulative gas volume. The P sensor reports each measurement immediately. The Q sensor displays each measurement 10 s after it was taken, but displays the current clock time next to that delayed value.
| Time displayed (s) | P displayed volume (mL) | Q displayed volume (mL) |
|---|---|---|
| 10 | 6 | 0 |
| 20 | 11 | 6 |
| 30 | 15 | 11 |
| 40 | 18 | 15 |
| 50 | 18 | 18 |
Question 1
Which two displayed readings compare P and Q at the same actual reaction time of 20 s?
- P at 10 s and Q at 10 s
- P at 20 s and Q at 20 s
- P at 20 s and Q at 30 s
- P at 30 s and Q at 20 s
Question 2
Use Q’s record to find its average gas production rate from 10 s to 30 s of actual reaction time.
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Question 3
A student claims Q had produced less gas than P by the actual 30 s mark. Use one displayed time and volume for each sensor to evaluate the claim.
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A third sensor has an unknown delay. The team can give that sensor and the immediate sensor the same sudden change in test gas volume at a known clock time.
Question 4
Describe how to compare the immediate sensor with the third sensor to measure the third sensor’s delay. State which events to record and how to calculate the delay.
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