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- May 12, 2015
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Hey Everybody,
So I was doing a TPR passage the other night and it basically was a passage comparing two cylinders-- one called a "compressed-shock absorber", and the other a "conventional spring shock absorber".
Briefly, the compressed-shock absorber consisted of a cylinder--- one end of it having a movable piston, and the other end was exposed to a compression force. Both ends were airtight. The test runs looked at the displacement of the piston while a force was being applied to one end.
Basically, as the force reached a certain magnitude, the piston stopped moving, but the air-tight seals were not breached, and the shock regained all of its normal characteristics after the force was removed.
The question I am confused about was asking the reason for the above. I chose "the vapor pressure of the gas decreased as the applied pressure increased". The correct answer was "the gas liquefied under the high pressure".
Now my question is, aren't those two answers essentially the same? If vapor pressure is decreased, then there are less gas molecules above the surface of the liquid, and therefore, more molecules within the liquid itself... so isn't that the same as "it liquefied"? Maybe it's semantics...
Been trying to understand this for a couple of days. Any thoughts would be appreciated. Thanks!
So I was doing a TPR passage the other night and it basically was a passage comparing two cylinders-- one called a "compressed-shock absorber", and the other a "conventional spring shock absorber".
Briefly, the compressed-shock absorber consisted of a cylinder--- one end of it having a movable piston, and the other end was exposed to a compression force. Both ends were airtight. The test runs looked at the displacement of the piston while a force was being applied to one end.
Basically, as the force reached a certain magnitude, the piston stopped moving, but the air-tight seals were not breached, and the shock regained all of its normal characteristics after the force was removed.
The question I am confused about was asking the reason for the above. I chose "the vapor pressure of the gas decreased as the applied pressure increased". The correct answer was "the gas liquefied under the high pressure".
Now my question is, aren't those two answers essentially the same? If vapor pressure is decreased, then there are less gas molecules above the surface of the liquid, and therefore, more molecules within the liquid itself... so isn't that the same as "it liquefied"? Maybe it's semantics...
Been trying to understand this for a couple of days. Any thoughts would be appreciated. Thanks!