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Short answer:
A vacuum is actually a description of very low pressure.
Long answer:
This question really depends on the case. For this answer I'll be referring to an air cylinder like in a paintball gun or so on. Air pressure is the pressure or force a gas exerts on an object. For example atmospheric air pressure is the weight of all the air in the atmosphere above you pushing down on you. Or in the case of a cylinder pressure is the force of the molecules and atoms of air bumping into the wall of the cylinder. the more collisions with the walls the higher the pressure. Adding more air means more atoms to bump around and more pressure. As you start to remove the atoms and molecules from the cylinder there are less and less to bump into the walls. Thus lowering the pressure of the cyclical. A vacuum is reached when there are little to no more molecules or atoms bouncing around inside the tube. Therefore a vacuum is actually a description of very low pressure.
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∙ 14y ago
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Is a vacuum a force?
a vacuum is simply an empty or almost empty space. The forces that are apparent with vacuums are due to a pressure imbalance between the inside of the vacuum (low pressure) and the outside of the vacuum (high pressure) causing particles to want to migrate to areas of lower pressure. The effect of this pressure difference is often refered to as a vacuum force
How do you detect leak in a vacuum chamber?
The simplest method would be to mount a pressure gauge onto the chamber, then to observe whether the reading changes. It should remain at "zero" indicated gauge pressure. If your instrumentation is relative to atmospheric pressure, it would be a "minus" pressure and would vary with local atmospheric pressure. For very accurate readings, you would need something more sophisticated, such as an ionisation gauge.
What is the pressure in a vacuum?
There is no pressure in a vacuum, a vacuum is the absence of anything, there is nothing there to push. Air from a pressurized space that becomes open to a vacuum may push you into the vacuum, but the vacuum itself does nothing as it is literally nothing.
How is pressure used in vacuum cleaners?
Air pressure out of the vacuum's exhaust automatically creates a negative pressure (a vacuum) at the machines front end - that picks up the dirt.
Where could one find a vacuum chamber?
One can find vacuum chambers (a special chamber in which air and other gasses are pumped out) in specialized websites online, or can be rented from the Kurt J. Lescker company.
What happens to the pressure inside the lungs as the volume of the thorax increase?
As your diaphragm expands, the pressure in your thoracic cavity decreases. Air rushes into the partial vacuum, and you inhale.
Why Stop boiling water Vacuum Chamber With the continuation of the vacuum pump work And vacuum pressure gauge -30 in hg Thank you?
You want to stop boiling water Vacuum Chamber because of the vessel seal. If the pump is boiling it will stop at the point of equilibrium.
Where is the vacuum line on a 96 s10 blazer the one in the fuel spider?
It doesn't have or need a line connected to it. The spider is inside the vacuum chamber.
What is the pressure of a container that has a vacuum inside of it?
Since there's no particles present, there's no pressure.
What goes on inside a vacuum?
by definition a vacuum is empty. as in nothing. there is nothing in a vacuum. so the answer is, by current knowledge, that nothing happens in a vacuum
Is a vacuum a force?
a vacuum is simply an empty or almost empty space. The forces that are apparent with vacuums are due to a pressure imbalance between the inside of the vacuum (low pressure) and the outside of the vacuum (high pressure) causing particles to want to migrate to areas of lower pressure. The effect of this pressure difference is often refered to as a vacuum force
What is room temperature and pressure?
NIL... Does NOT exist...As there is no medium inside the vacuum.
What will happen if you put some 20 C water in a vacuum chamber and reduce the pressure to less than 18 MMHG?
The water will boil (no calculations necessary, but look at a table that shows the vapor pressure of water at different temperatures.here's a link: http://en.wikipedia.org/wiki/Vapour_pressure_of_water )
Explain the principle of operation for the pressure cooker and the vacuum pan in cooking?
Pressure Cooker Operation In pressure cooker,the food is cooked in closed condition ,where,there is pressure valve ,here you are increasing the pressure inside the vessel hence ,pressure inside the pan will be greater than atmospheric pressure,hence the boiling point is reached in less time and cooking takes place faster. Vacuum Pan Here vacuum is opened or reducing the pressure where air inside is removed and hence the product is cooked at lower temperature .More u increase the vacuum,more reduction in pressure and hence longer time to cook ,
Why is there no gas pressure inside a vacuum?
Gas pressure is caused by the molecules of gas striking the walls of a container, or in the case of Earth's atmosphere, the molecules of air hitting the earth. In a vacuum, there are no gas molecules. No molecules, no pressure.
Where can one purchase a chamber vacuum cleaner?
A chamber vacuum cleaner can be purchased at Amazon, eBay or other second hand stores. There are many popular brands of chamber vacuum cleaning including Samsung.
What happens when presuure inside a cathode ray tube is very very low?
C.R.T. are built to to have near vacuum so electrons can easily flow. as pressure increases this capability is reduced accordingly
