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Anonymous
What does pressure mean in thermodynamics? 2017-08-05 12:49:26 Post No. 9085973
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What does pressure mean in thermodynamics? 2017-08-05 12:49:26 Post No. 9085973
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Does pressure mean the pressure OF a fluid?
Or does it mean the pressure ON a fluid?
The rule is that if T > Tsaturation, then a substance is a superheated vapor, which makes sense.
The other rule is that if P < Psaturation, then the substance is a superheated vapor.
This means that P is the the pressure being exerted on the fluid by its environment, right?
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>>9085973
Its the same thing.
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>>9085973
If pressure is exerted on a fluid by the environment, the fluid is pressurized.
It's the same thing.
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>>9086030
It's the same thing. Remember the Vapor pressure depends on the substance and the temperature. The actual pressure is measurable and depends on the environment.
You're overthinking it, anon.
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>>9086030
>This implies that external, or environmental pressure is constantly "pushing down" on the substance
it is, and for a pool of water for example,the external source of pressure is the atmosphere at the surface, and the atmosphere + whatever portion of water up to the depth at which you're measuring pressure
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