0
Derive an expression for expression for rise of liquid in a capillary tube?
Wiki User
∙ 10y ago
deduce an expression for height of a liquid in capillary tube. also write practical applications of capillary action.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
Why does a liquid rise in a capillary tube?
This is due to Surface Tension. The molecules/atoms of the liquid are atrracted by the particles of the solid and thus the liquid rises in the capilliary tube.
What is head rise?
head rise
Is there such thing as a gas that can sink?
A gas will always have a lower density than its corresponding solid or liquid, and thus could not sink in its own liquid.Gasses can, of course, be absorbed/dissolved into liquids.One of the least dense liquids would be liquid hydrogen with a density of about 67.8 kg/m3One of the densest gasses (at 1 ATM) is Radon Gas at about 9.73 kg/m3. Thus, it would still float in liquid hydrogen at 1 ATM.However, the density of gasses is a function of the pressure and temperature, so at extreme pressures, Radon gas would likely sink in liquid hydrogen.The density of the atmosphere at the surface of Venus is about 67 kg/m3, and thus it might sink in liquid hydrogen (ignoring, of course, the temperature and pressure differences).
What are the advantages of the manometer pressure-measurement device?
The manometer in its various forms is an extremely useful type of pressure measuring instrument, but suffers from a number of limitations.While it can be adapted to measure very small pressure differences, it can not be used conveniently for large pressure differences - although it is possible to connect a number of manometers in series and to use mercury as the manometric fluid to improve the range. (limitation)A manometer does not have to be calibrated against any standard; the pressure difference can be calculated from first principles. ( Advantage)Some liquids are unsuitable for use because they do not form well-defined menisci. Surface tension can also cause errors due to capillary rise; this can be avoided if the diameters of the tubes are sufficiently large - preferably not less than 15 mm diameter. (limitation)A major disadvantage of the manometer is its slow response, which makes it unsuitable for measuring fluctuating pressures.(limitation)It is essential that the pipes connecting the manometer to the pipe or vessel containing the liquid under pressure should be filled with this liquid and there should be no air bubbles in the liquid.(important point to be kept in mind)
What is Voltage rise?
Voltage Rise : The energy added to a circuit. Voltage drop: The energy removed from the circuit.
Why do liquid rise of fall in a capillary tube?
It is because of the surface tension between liquid molecules and the inner surface of the tube. The meniscus height is determined by the inner diameter of the tube. The smaller the diameter, the higher the meniscus will climb due to capillary action.
What is the tendency of a liquid to rise in a small diameter tube called?
The 'capillary effect'. See the link.
Why there is capillary action and why the effect is greater for narrower tubes?
Liquid rises in and out of cappilarry to compansate pressure difference. Rise of a liquid in capillary is indirectly proportional to radius of tube so liquid goes higher in a narrow tube.
Why does a liquid rise in a capillary tube?
This is due to Surface Tension. The molecules/atoms of the liquid are atrracted by the particles of the solid and thus the liquid rises in the capilliary tube.
What is capilliarity?
The tendency of a liquid in a capillary tube or absorbent material to rise or fall as a result of surface tension.
What we called the tendency of liquid molecules to rise spontaneously up tubes with narrow diameters?
That is capillary attraction.
The rise of water in a narrow test tube is called?
The rise around the edges is called the meniscus, like capillary action this is caused by the adhesion of the liquid molecules to the walls of the container. In a large bore tube like a test tube or graduated cylinder this pulls up the edge and creates a concave meniscus, in a smaller bore tube this actually pulls the liquid toward the top of the tube.
What is the attraction between molecules that result in the rise of liquid in small tubes?
capillarity, also known as capillary action.
Capillary rise and fall applications in nature?
capillary fall
What is the basic use of capillary tube?
Capillary tubes are renowned for their capillary action on liquids, i.e. they cause liquids to rise up inside them. Capillary tubes are the essence of thermometers that use a liquid indicator. In biology and the plant world, capillary tubes are fundamental to the movement of fluids through the systems of living organisms.
Does liquid water rinse higher in a narrow tube or a wide tube?
You mean rise not rinse. Higher in a narrow tube due to capillary action.
What is quincke 's method?
Quincke's method is a technique used to determine the surface tension of a liquid by measuring the maximum height to which the liquid rises in a capillary tube. It involves carefully introducing the liquid into the tube and allowing it to rise due to capillary action until it reaches equilibrium. The surface tension can then be calculated using the measured height and the properties of the liquid and the tube.
