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4 cards from this section. Quick, good the night before a test.
What is capillary action?
Think about how water behaves in a straw.
Define surface tension.
Consider what happens when you try to float a paperclip on water.
What causes the rise of liquid in a capillary tube?
Consider what holds the liquid against gravity.
True or False: Capillary action occurs only in solid tubes.
Think of the example of a thin fabric soaking up water.
A capillary tube with a diameter of 1mm contains mercury. If the surface tension is 0.485 N/m, calculate the height of mercury rise.
You will need the density of mercury and gravitational acceleration to solve.
How does the introduction of a non-wetting fluid (like oil) into a capillary tube with water affect the capillary rise?
Consider the properties of the fluids involved.
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