8.5.2 - Control Volume in Capillary Problems
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Practice Questions
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Define gauge pressure.
💡 Hint: Think about how tire pressures are measured.
What is hydrostatic pressure?
💡 Hint: Consider how deep underwater pressure increases.
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Interactive Quizzes
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What is the principle of hydrostatic pressure?
💡 Hint: Think about how water pressure is felt as you dive deeper.
Gauge pressure is measured in relation to which reference?
💡 Hint: Consider how everyday pressure gauges work.
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Challenge Problems
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Calculate the height to which water rises in a capillary tube of diameter 2mm with a surface tension of 0.072 N/m and a contact angle of 0 degrees. Assume the density of water is 1000 kg/m³.
💡 Hint: Remember the formula for capillary rise!
In a container with two different liquids of different densities, how would you measure the gauge pressure at various heights and explain the results?
💡 Hint: Think about the differences in pressure between the two liquids as you measure.
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