Answer :
The length of the capillary tube can range from 1- 6m and the diameter on the inside ranges from 0.5-2mm.
Narrow cylindrical tubes having very small diameters are known as capillary tubes. Pressure reduction is the main objective of the capillary tube. Its primary usage is in the laboratories for collection of various samples of liquid. Molarity, molality and other concentrations can also be checked using capillary tubes. It can also be used in refrigeration in order to control the flow of refrigerants. The length of the capillary tube can range from 1- 6m and the diameter on the inside ranges from 0.5-2mm. If we decrease the diameter of the tube, the weight of the liquid also decreases. Hence, with the decrease in the diameter the phenomenon of capillarity increases. If there is insufficient height of the tube, the radius of the meniscus changes in order to ensure that there is no spilling.
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Capillary tubes typically have an inner diameter of 25-75 5m and an outer diameter of 200-375 5m. They are used in laboratory settings for procedures like gas chromatography, and demonstrate capillary action when water rises to a height of 8.4 cm, corresponding to a tube diameter of 0.36 mm.
The size or diameter of a typical capillary tube used in scientific applications ranges from 25-75 5m for the inner diameter, and 200-375 5m for the outer diameter. These tubes are commonly made from fused silica for transparency and thermal stability and are coated with a layer of polyimide, which ranges from 15-35 5m in thickness, to enhance mechanical strength. Capillary tubes are essential in various laboratory techniques such as capillary electrophoresis and gas chromatography (GC). In a different context, specifically in biology, capillary tubes refer to the small blood vessels which have diameters slightly larger than a red blood cell, showcasing their microscopic scale.
In a practical example, if water rises in a glass capillary tube to a height of 8.4 cm, the diameter of the tube can be calculated to be 0.36 mm. This exemplifies the capillary action phenomenon, where the adhesion between the water molecules and the tube walls, coupled with surface tension, allows the water to rise against gravity.
