Molecules in a gas are being pumped through a vacuum system. Eventually the pressure drops low enough that the gas molecules collide with the chamber walls more than they do themselves. How can the pressure be further reduced? I. Add a secondary pump with a large inlet to capture as many randomly moving molecules as possible. II. Add a secondary pump and insure that once molecules enter it that they can't escape out the inlet. a. Neither I nor II b. I only c. Both I and II d. II only
Atmospheric Pollution
In the atmosphere, the existence of large quantities of undesirable substances that could cause several health issues to living organisms and humans is atmospheric pollution. Air pollution is otherwise known to be atmospheric pollution. The presence of undesirable materials would also destruct the natural environment such as a change in climate, degradation of habitat, or depletion of ozone. Air pollution is generated by the natural processes and activities of humans.
Smokestack Scrubbers
Once we believe in the environment and remember the pollution-producing facets of it, we will consider the smoke-stacks scrubber to be a number of the worst offenders. Although this is often legally correct, smoke-stack scrubbers often have a big function in terms of keeping ground-level air pollutants- safe to breathe and assisting within the management of emissions.
Molecules in a gas are being pumped through a vacuum system. Eventually the pressure drops low enough that the gas molecules collide with the chamber walls more than they do themselves. How can the pressure be further reduced?
I. Add a secondary pump with a large inlet to capture as many randomly moving molecules as possible.
II. Add a secondary pump and insure that once molecules enter it that they can't escape out the inlet.
a. Neither I nor II
b. I only
c. Both I and II
d. II only
To attain a state of vacuum, a space must be empty, i.e. devoid of all gaseous material. The consequence of this is that the pressure in this space is very low, as it contains no or only a small number of particles, which exert a force on an area as a result of their impact against the walls.
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