Discussion Overview
The discussion revolves around determining the pressure produced by boiling a liquid, specifically focusing on liquid nitrogen and its behavior at various temperatures. Participants explore the relationship between temperature and pressure in the context of boiling and phase transitions.
Discussion Character
- Exploratory
- Technical explanation
- Debate/contested
Main Points Raised
- One participant seeks an equation to determine the pressure produced by boiling a liquid, specifically liquid nitrogen at 0K.
- Another participant clarifies that boiling refers to heating a liquid until the partial pressure of the gas exceeds ambient pressure, suggesting the use of saturated vapor pressure tables for calculations.
- There is a correction regarding the temperature, with participants noting that nitrogen would not be heated to zero Kelvin, as it is an extremely low temperature.
- A participant suggests using the phase diagram of nitrogen to find the pressure at 273K, estimating it to be around 500 psi.
- There are requests for links to phase diagrams, indicating difficulty in finding reliable resources online.
Areas of Agreement / Disagreement
Participants generally agree on the concept of using phase diagrams and saturated vapor pressure to determine boiling pressures, but there is confusion regarding the temperature reference (0K vs. 0C) and the implications of heating nitrogen.
Contextual Notes
There are unresolved issues regarding the availability and accuracy of phase diagrams for nitrogen, as well as the specific pressures at different temperatures, which depend on the definitions and assumptions made about the state of the substance.
Who May Find This Useful
This discussion may be useful for individuals interested in thermodynamics, phase transitions, and the properties of nitrogen in various states, particularly in experimental or applied contexts.
