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gracy
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Vapor pressure possible only in closed system? b.p is when vapor pressure become equal to atmospheric pressure in which system closed or open ?
Vapor Pressure: Closed-Systems Only? Open or Closed?
- Thread starter gracy
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Discussion Overview
The discussion revolves around the concept of vapor pressure and whether it is applicable in closed systems only or if it can also exist in open systems. Participants explore the definitions and implications of vapor pressure in different types of systems, including theoretical and practical considerations.
Discussion Character
- Debate/contested
- Conceptual clarification
Main Points Raised
- Some participants question whether vapor pressure is only possible in closed systems, specifically asking about the conditions under which vapor pressure can exist in open systems.
- Others argue that it does not matter if the system is closed or open, suggesting that vapor pressure can be present in both scenarios.
- A participant points out that in an open system, such as a vessel without a lid, there are conditions under which vapor pressure can be created, specifically at the interface between liquid and gas phases.
- Another participant clarifies that vapor pressure is a type of partial pressure of a specific gas, typically water, and does not differ fundamentally from the partial pressures of other gases.
- One participant emphasizes that the partial pressure at the interface equals the vapor pressure, while further away from the interface, the partial pressure is less than the vapor pressure, indicating a driving force for vapor transport.
Areas of Agreement / Disagreement
Participants express differing views on whether vapor pressure is restricted to closed systems or if it can also occur in open systems. The discussion remains unresolved, with multiple competing perspectives presented.
Contextual Notes
There are unresolved assumptions regarding the definitions of vapor pressure and atmospheric pressure, as well as the conditions necessary for vapor pressure to exist in open systems.