elizediax3007 elizediax3007
  • 20-04-2021
  • Chemistry
contestada

Why do some liquids form a convex surface when placed in a narrow test tube while others form a concave surface​

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katieschaffer11 katieschaffer11
  • 20-04-2021

Answer:

When liquid water is confined in a tube, its surface (meniscus) has a concave shape because water wets the surface and creeps up the side. ... When liquid mercury is confined in a tube, its surface (meniscus) has a convex shape because the cohesive forces in liquid mercury tend to draw it into a drop.

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