Fluted filter paper is used to__________________?
Correct answer: C. Increase the rate of filtration
- A. Filter hot solution
- B. Avoid premature crystallization
- C. Increase the rate of filtration
- D. Decrease the area
Explanation
The folds in fluted filter paper provide channels for air and increase the effective surface area, so liquid passes through more rapidly. Students may select “filter hot solution,” but hot solutions can be filtered with ordinary folded paper too; the main purpose of fluting is faster filtration.
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About Properties of Liquids
Liquid behavior depends on intermolecular forces, which produce surface tension, viscosity, capillary action and a definite volume without a fixed shape. The topic also covers vapor pressure, evaporation, boiling point and the effect of temperature and external pressure, while distinguishing evaporation at the surface from boiling throughout the liquid.
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