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Reading What a Channel Holds and Releases 4 questions
Reading What a Channel Holds and Releases
Base your answers on the information provided and your knowledge of chemistry. Use the 2025 Chemistry Reference Tables as needed.
A model sends ten X particles and ten Y particles into a narrow channel. The two kinds have the same size, and both fit through the opening. The wall can temporarily hold particles through attraction. A plain reference channel has the same shape and does not hold either kind.
| Channel | X at the outlet during the first interval | Y at the outlet during the first interval |
|---|---|---|
| Plain reference | 10 | 10 |
| Attracting wall | 4 | 10 |
Question 1
Which kind is delayed by the attracting wall in the first interval?
- X only
- Y only
- Both kinds
- Neither kind
Question 2
Find how many of the original X particles have not reached the outlet at the end of that interval.
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The display adds no more particles. In the next interval six additional X particles leave the attracting channel. No Y particles leave then.
Question 3
A student says the attracting channel permanently blocks six X particles because it gives a first reading of four. Evaluate the claim using both intervals.
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Question 4
Explain why the plain channel is useful for separating attraction from a claim about particle size.
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