Underlying physics of partial pressures

  • Thread starter Thread starter soundgarden
  • Start date Start date
  • Tags Tags
    Partial Physics
AI Thread Summary
Gases in a mixture exist at partial pressures due to their individual contributions to the total pressure, which can vary based on temperature and volume. Moisture in the air can exist as superheated steam at temperatures below the boiling point due to low pressure conditions, suggesting it hasn't reached equilibrium. The distinction between evaporation and boiling is emphasized, with vapor being different from steam. An everyday example of slightly superheated steam is the pressurized steam above boiling water in a closed tea kettle. Understanding these concepts is crucial for grasping the underlying physics of gas behavior in mixtures.
soundgarden
Messages
3
Reaction score
0
How do gases exist at partial pressures in a mixture. Moisture in the air is superheated steam, yet at a temperature well below atmospheric boiling point, implying that the moisture in the air is at very low pressures. How does it maintain this state?
 
Engineering news on Phys.org
Maybe it hasn't reached equilibrium yet, that's got to be in the thermo book.
 
Evaporation is not (yet) boiling, vapours is not steam. An example of slightly superheated steam in everyday life is the pressurised steam over the boiling water in a closed tea kettle.
 

Thread 'Race car suspension Class'

Posted June 2024 - 15 years after starting this class. I have learned a whole lot. To get to the short course on making your stock car, late model, hobby stock E-mod handle, look at the index below. Read all posts on Roll Center, Jacking effect and Why does car drive straight to the wall when I gas it? Also read You really have two race cars. This will cover 90% of problems you have. Simply put, the car pushes going in and is loose coming out. You do not have enuff downforce on the right...
View full post »

Thread 'Cantilever help'

I'm trying to decide what size and type of galvanized steel I need for 2 cantilever extensions. The cantilever is 5 ft. The space between the two cantilever arms is a 17 ft Gap the center 7 ft of the 17 ft Gap we'll need to Bear approximately 17,000 lb spread evenly from the front of the cantilever to the back of the cantilever over 5 ft. I will put support beams across these cantilever arms to support the load evenly
View full post »
Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'

Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'

Scenario 1 (figure 1) A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material. The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm). At this level of stretch, the load cell reads 45N tensile force. Key numbers...
View full post »

Similar threads

Why Did the Temperature Rise in a Sealed Automotive Cooling System?
Replies
18
Views
2K
Need help with a research project for firefighting
Replies
7
Views
2K
Rotary Vane Vacuum Pump Question
Replies
5
Views
2K
Query re: Partial pressures of O2 in high vs low pressure environments
Replies
4
Views
2K
What determines the pressure inside this experimental setup?
Replies
2
Views
2K
Partial Thermo analysis of a Crower engine
Replies
5
Views
1K
Modeling Air Compression Cylinder
Replies
45
Views
5K
Is the Triple Point of Water Affected by Atmospheric Pressure?
Replies
6
Views
2K
How pressure affects partial pressures (and dewpoint)
Replies
10
Views
2K
Time to empty gas cylinder (problem worked, but would like feedback)
Replies
7
Views
3K

Hot Threads

Recent Insights

Back
Top