4.2.1 Diffusion Quiz
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This quiz contains questions that are relevant to topic 4.2.1, Diffusion.
4.2.1 Diffusion Quiz
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Question 1 of 5
1. Question
Theoretically speaking, the driving force for diffusion of dye molecules from dyebath to fibre should cease when the following condition is met; (1 point)
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Question 2 of 5
2. Question
Which of the following are true statements regarding the process of diffusion; (3 points)
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Question 3 of 5
3. Question
Which of the following statements is true regarding aggregation of dye molecules; (4 points)
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Question 4 of 5
4. Question
Match the following sort elements as a best fit to the appropriate criteria (3 points)
Sort elements
- Solubility of the dye. Flow of dye liquor through the substrate being dyed.
- Nature of the dye/fibre interaction(s).
- Size and shape of the dye molecules. Degree of Cystallinity of the fibre.
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Diffusion of dye molecules from the bulk solution to the surface of the fibre
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Adsorption at the fibre surface
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Diffusion from the fibre surface into the interior of the fibre
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Question 5 of 5
5. Question
Sort the following into the correct order (highest to lowest), regarding the likelihood of aggregation in solution. (1 point)
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Medium molecular size
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Small molecular size
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Large molecular size
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