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If you r talking about gases
Downward delivery:-collecting gases which are denser than air. e.g. carbon dioxide, chlorine.
upward delivery :-collecting gases which are less dense than air. e.g. hydrogen.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agosome gases are denser than (heavier) air e.g. CO2, HCl, H2S, Cl2. are delivered by downward delivery. while gases which are Less dense than (lighter) air e.g. H2,NH3 are delivered by upward delivery.
simultaneously the downward delivery of gas = upward displacement of air while upward delivery of gas = downward displacement of air.
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Is argon an upward delivery gas?
No. Argon is slightly denser than air so would not be collected by upward delivery. In practice downward delivery would be unreliable as the difference in density is so small. However there is no way to prepare argon in the lab so the question is redundant.
What happens when air moving upward rubs against air moving downward?
stuff
When two normal faults forn parallel to each other a block of rockis left lying between them and as the normal fault slips downward the block in between moves upward forming a?
fault block mountian
What happens when the center of gravity is behind the center of pressure?
With the CG ahead of CP (aka CL), the downward force on the tail creates an upward pitching moment which is opposite of the downward pitching moment caused by the upward force at the CP--these are stabilizing forces. But notice what happens when the CG is behind the CP--both forces now create an upward pitching moment around the CG but there is no counterbalancing downward pitching moment created to stabilize the aircraft.
What are the wind conditions for a a tornado?
Tornadoes form during thunderstorms that occur when there is strong difference, meaning a significant difference between winds at low and high levels. The thunderstorm has updraft (upward moving air) and downdraft (downward moving air) regions. The tornado forms in a rotating part of the updraft called a mesocyclone. A downdraft wraps around the mesocyclone, causing it to tighten and intensify into a tornado.
Is argon an upward delivery gas?
No. Argon is slightly denser than air so would not be collected by upward delivery. In practice downward delivery would be unreliable as the difference in density is so small. However there is no way to prepare argon in the lab so the question is redundant.
what is the difference between ascending and descending tract?
An ascending tract goes upward. The descending tract goes downward.
What is the relationship between downward force and upward force?
Normal Force
How is ammonia gas collected in the laboratory preparation of ammonia gas?
Ammonia is collected in the laboratory by upward delivery and downward displacement of air....
What is the difference between spreading and subduction?
spreading: rock rises upward then spreads outward.subduction: rock moves inward then subducts downward under lighter rock.
What is the difference between Anticlines and synclines?
An anticline refers to a fold that arches upward to form a ridge. A syncline, meanwhile, refers to a fold that arches downward to form a trough.
Why is there an upward force on objects in fluid?
Gravity pulls both the fluid and the submerged object downward. The difference between the gravitational attractive forces on the fluid and the submerged object describes the upward (buoyant) force that the fluid exerts on the object.
Is the wing being pushed upward or downward?
Upward
A movie is made showing successive frames for an object accelerating downward. If the sequence is run backward would the object accelerate upward or downward?
UPWARD UPWARD UPWARD
The relationship between the upward and downward forces exerted on an object in a liquid is called?
buoyancy
What is the opposite of downward?
Upward.
What is Upward and Downward Bias?
The upward and the downward bias refers to the overestimation or overstatement by a statistical measure of a given event.
