Question
Download Solution PDFDancing of small pieces of camphor on the surface of water is due to:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Surface tension:
- Surface tension is the tension of the surface film of a liquid caused due to the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.
- When impurities are added to the water the intermolecular distance increases due to which Van der Wall forces decrease, so the surface tension decreases on adding impurities to the water.
EXPLANATION:
- When impurities are dissolved in water, the surface tension of water decreases.
- Hence, when camphor is dissolved in water, surface tension will decrease.
- As different amounts of camphor are dissolved from different sides so Camphor becomes non-symmetrical.
- Therefore surface tension will be different on different sides of the camphor which sets up an unbalanced force on the camphor due to which it dances on the surface of the water. Hence, option 2 is correct.
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