At normal room temperatures, Mercury has a low vapor pressure combined with a high mass, which makes diffusion pumping more efficient.
The predominate liquid used inside a filament transformer is mercury. Mercury is used to keep the transformer cool when under heavy use. Mercury is a cheap and long lasting liquid.
Net diffusion means the total diffusion due to both holes & electrons .
A sump pump is submerged in a pit. It keeps house from flooding. A utiliity pump is used to pump water out of already flooded house, boat, pool, tank, etc....
A desoldering pump is a device that removes molten solder during the process of soldering. The molten solder cools in the pump and can then be removed.
Diffusion is one type of passive transport. In Diffusion, molecules move from a higher concentration gradient to a lower concentration gradient. Diffustion does NOT need energy, or ATP.Q: What is the DEFINITION of DIFFUSION?A: Diffusion- a type of passive transport in cells in which molecules move from areas where there are more of them to areas there are fewer of them.ur wlcm (: SnazzyChazzy
At normal room temperatures, Mercury has a low vapor pressure combined with a high mass, which makes diffusion pumping more efficient.
Holding pump is a pump which can hold the other pump's working. e.g for a diffusion pump another pump is used as holding pump to maintain its efficiency.
There are a number of uses for the natural resource mercury. These include making thermometers, barometers, as well as diffusion pumps.
Mercury is used for wobbler (fishing) lures, barometers, diffusion pumps, fluorescent lamps, street lights, advertising signs, and many other things. Mercury used to be common in thermometers but was replaced with any one of a number of liquids.
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Used to have to do it by freezing out the Nitrogen, now they've got molecular diffusion membranes that allow it to happen with a small pump.