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Why does meniscus of water in glass curves upwards?
Adhesion to the test tube or cohesion of the liquid molecules causes the meniscus to form.
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.
Does the glass tube in a fire sprinkler expand more or less than the liquid inside the tube?
The contents of the glass envelope expand and break the envelope. That allows the valve to open and release the water. The contents expand more than the tube.
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 use of the condenser clamp?
Condenser lamp is a laboratory apparatus used to cool hot vapors and liquid. This typically has a large glass tube containing smaller glass tube running the whole length where the hot liquids pass.
What is Retro styled liquid thermometer?
Prior to digital, thermometers werre made of a glass tube with numbers on it to indicate the temp. Inside the glass tube there was liquid mercury which would rise to the appropriate number when the temp was being taken under the arm, under the tongue or in the rectum.
Does liquid water rise higher in a narrow tube or a wide tube?
Rise or fall of liquid in a small passage or tube. When a glass tube of small internal diameter is inserted into water, the surface water molecules are attracted to the glass and the water level in the tube rises. The narrower the tube, the higher the water rises. The water is said to "wet" the tube. Water will also be drawn into the fibres of a towel, even if the towel is in a horizontal position. Conversely, if a glass tube is inserted into mercury, the level of the liquid in the tube falls. The mercury does not wet the tube. Capillarity is caused by the difference in attraction of the liquid molecules to each other and the attraction of the liquid molecules to those of the 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.
The fource which causes liquid to rise in a narrow tube is?
surface tensions
What is in a thin glass tube with a bulb on the end that contains a liquid usually mercury or colored alcohol?
It is a glass thermometer.
What is a thin glass tube with a bulb on the end that contains a liquid usually mercury or colored alcohol?
It is a glass thermometer.
Derive an expression for expression for rise of liquid in a capillary tube?
deduce an expression for height of a liquid in capillary tube. also write practical applications of capillary action.
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 the definition of Glass thermometer?
thermometer consisting of mercury contained in a bulb at the bottom of a graduated sealed glass capillary tube marked in degrees Celsius or Fahrenheit; mercury expands with a rise in temperature causing a thin thread of mercury to rise in the tube
Does the glass tube in a fire sprinkler expand more or less than the liquid inside the tube How do you know?
Loads more The liquid expands more than the glass envelope. You know this because the mechanism is designed to open the water valve to the sprinkler head when the glass envelope shatters when the liquid ruptures it as it heats up.
What is the tendency of a liquid to rise in a small diameter tube called?
The 'capillary effect'. See the link.
What is the capillary tube?
In chemistry... it's a thin open-ended glass tube for collecting small amounts of liquid. Inserting one end of the tube into liquid allows the liquid to flow upqwards. When the liquid reaches a suitable height, a finger placed over the open end (towards the top) holds the liquid in the tube - for transferring from one place to another.
