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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 happened when you placed a lighted match near the test tube?
The heat from the lighted match caused the liquid in the test tube to heat up. If the liquid was flammable, it may have caught on fire. However, if the liquid was not flammable, it would have simply heated up and there may have been no other visible changes.
Heating the liquid in a test tube?
When heating a liquid in a test tube, make sure to use a Bunsen burner or a hot plate, and gently heat the bottom of the test tube. Avoid heating the liquid too quickly to prevent bumping or boiling over. Use a test tube holder to hold the test tube and prevent accidental spills or burns.
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.
Why use a dobhoff tube instead of a nasogastric tube?
A Dobhoff tube is more flexible and less likely to cause nasal trauma compared to a nasogastric tube. It is also preferred for long-term use as it can be left in place for several weeks. Additionally, a Dobhoff tube is more suitable for delivering nutrition directly into the small intestine.
Why does liquid rise in a capillary tube?
Liquid rises in a capillary tube due to capillary action, which is the result of adhesive and cohesive forces between the liquid and the tube. Adhesive forces between the liquid and the tube's surface cause the liquid to be attracted to the tube, while cohesive forces within the liquid molecules help pull the liquid up the tube against gravity.
Why is direct heating of liquid substances in a test tube over the flame prohibited?
Provided that you use the wider kind of tube known as a boiling tube, this is not so. Of course it is dangerous to heat liquids in a narrow tube, as this can cause rapid boiling and the shooting of the liquid out of the tube.
What is the effect of change the length of tube input liquid?
The effect of changing the length of tube input liquid depends on the type of device being used and the types of liquids being used. In general, increasing the length of the tube can cause a decrease in the amount of fluid being inputted. This is because the longer the tube, the more resistance the fluid faces when being forced through it. This resistance can cause a decrease in the velocity of the fluid, resulting in a lower flow rate. For example, when using a syringe to inject a fluid, increasing the length of the tube can cause the fluid to move slower, resulting in a smaller amount of fluid being inputted. If a pump is used to move a fluid, then increasing the length of the tube may increase the pressure the pump has to work against. This can cause the pump to work harder, resulting in less efficient operation, and possibly overheating. Finally, the type of liquid being used can also play a role in the effect of changing the length of the tube. For example, if a liquid is highly viscous, then increasing the length of the tube can cause an even larger decrease in the amount of fluid being inputted. This is due to the increased resistance the liquid has to overcome when being forced through the longer tube.
What would the pressure be in a liquid contained in a vertical tube sealed at the top with a submerged open bottom be?
It would be the same as the pressure in the liquid outside the tube at the open end- the deeper it is in the liquid, the higher the pressure.
Why is there oil in your spark plug tube?
Most likely cause is the cam cover gasket is leaking.
Is there inert gas inside a thermometer?
No. The tube inside a thermometer is vacuum. If there was a gas inside, the pressure changes due to temperature changes would cause the liquid inside to expand/contract unevenly.
What is the source of liquid droplets seen on the inner upper side of the test tube during the heating process?
The liquid droplets on the inner upper side of the test tube are likely due to condensation. As the test tube is heated, the air inside expands and rises, coming into contact with the cooler upper side of the test tube, causing it to condense into droplets.
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.
How would you separate the salt from the water and still have the water left?
Simple collect the water gas and cool it using a condenser in a condensing tube which will cause the water to return to liquid state and collect it in a beaker
What can cause transmission fluid to come for the filler tube?
The most likely cause of transmission fluid coming up the filler tube is air in the fluid. This can be caused by a leak in the system and should be checked by a mechanic as soon as possible.
How liquid pressure vary with density of liquid?
Imagine a glass tube with equal cross-section of 1 square cm and of length 100 cm. Fill the tube with the liquid of density 'd' to the 75cm mark.The pressure at the bottom of each tube is the force exerted per unit area by the column of liquid in the tube. We have conveniently selected tubes with 1 sq cm (unit area in CGS system) cross sectional areas. So the weight of the column in the tube would be the pressure. Hence the pressure in the tube would be1) Weight of the 75cm liquid column = 75 x d x g = 75dg dynesThe presuure depends on the density in a linear proportion.Read more: How_does_liquid_pressure_vary_with_density_of_liquid
What would happen if you fired your ar15 without the buffer inside?
The bolt carrier would not return, another round would be chambered, and you'd likely have to replace a bolt carrier, buffer tube, buttstock (if using a fixed buttstock), and buffer spring (if the spring was in the extension tube). You could also cause injury to yourself if the bolt carrier ended up going through the back of the extension tube.
