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16 views

Equations involved in freezer burn

Assuming a sphere with a given percentage of moist uniformly distributed through the sphere. It's surrounded by air with no humidity. How could I model the sublimation of the sphere's moist into the ...
43 views

Kirchhoff's laws in phasor domain

While analysing AC circuits, we write voltage, current etc all with complex numbers namely "phasors". While studying the same, I wondered if Kirchhoff's laws held good with current and voltage in ...
22 views

Phase diagram binary mixture

The Gibbs Phase Rule states: F = C - P + 2. From this it is possible to construct a phase diagram. In case of a 1-component system C=1 and where P denotes the number of phases in equilibrium. In case ...
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What is the temperature change for the adiabatic compression of $^3$He?

Given a phase diagram of $^3$He, consider the adiabatic compression of liquid $^3$He until it becomes solid. If the temperature of the fluid is 0.1 K (where dP/dT < 0), will the temperature after ...
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Finding liquid/vapor phases of LJ system with Gibbs Ensemble

I've been trying to use the Gibbs Ensemble Monte Carlo method for finding the liquid and vapor phases for a given particle interaction. This method sets up two isothermal subsystems that exchange ...
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Is it possible to mix a drink with a non-standard phase of ice?

Would it be possible to safely cool and drink a glass of water with anything else than the Ih form of ice? Here and here you can see that some alternative forms of ice have a higher density than ...
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Quenching of binary alloy: Concentration equilibrium

I'm currently reading "Models for phase separation and their mathematics" by Paul C. Fife and there is a paragraph which I don't understand because I lack the necessary background in physics/...
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Phase diagram of gauge + matter theories

I am looking for some notes/reviews on confinement and Higgs phases suitable for Fermionic/Bosonic matter coupled to Abelian ($Z_2$ or $U(1)$ etc) gauge fields. The purpose is to understand issues ...
84 views

Is thermal and electrical conductivity correlated for all phases of matter?

After reading this interesting post about why copper is a great heat conductor, I wondered if a plasma would conduct heat better than a gas. Or, are some properties like density more important for ...
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When is the phase space diagram an ellipse?

For a two dimensional dynamical system, when does the phase space diagram give an ellipse? I know about the examples for damped and undamped harmonic oscillators, but our instructor said that the ...
213 views

Is water steam in air a case of liquid in gas solution?

Thinking of this question, I thought that the phenomenon of water evaporation into the air is totally analogous to the solid (say, salt) that is dissolved into a liquid (water). Indeed, in this ...
404 views

Gibbs phase rule and degrees of freedom at the triple point / triple line

The Gibbs phase rule tells me that at a substance's triple point, where there are 3 phases in equilibrium, there should be 0 degrees of freedom. Based on my understanding, that means there should be 0 ...
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Can I plot a phase diagram (P against T) of a mixture if the mole compositions are known?

Is it possible? Or do I have to actually experiment it in a lab? If it's possible, what data would I need? I'm right now only given the mole percentages and the weight percentages. I do know I can ...
258 views

Simple estimation of the critical temperature of water

I'm trying to develop fermi estimation skills and I came up with a question for which I don't even know where to start from. Here goes: Is it possible to estimate the critical temperature (say in ...
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Where can I find phase diagrams for mag-thor alloys?

Where can I find phase diagrams for Mg Th alloys? Thanks!
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1st order phase transition, superheating/supercooling, metastable state

I read that superheating and supercooling characterize 1st order phase transitions in papers. Some of them also use the metastable state at the same time as the superheating/supercooling. Are ...
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Phase transition water

The water-gas phase transition is said to be similar to the ferromagnetic-paramagnetic phase transition (same set of critical exponents = same universality class). In the former case the order ...
176 views

can hydrogen stay frozen in vacuum?

I've look into the hydrogen state diagram, and it seems that it can be frozen under pressure. Question: Does this mean that hydrogen cannot be kept frozen in a vacuum chamber?
10k views

Pressure of sealed in liquid nitrogen

If you take a container of great strength, fill it to the brim with liquid nitrogen, seal the container, and heat it to room temperature. What will the pressure be inside? Bonus: The same with ...
773 views

Reference for phase diagrams of elements [duplicate]

I am trying to answer this question: What is the pressure inside a sealed container with liquid nitrogen at room temperature? Can you help me find a good online reference for phase diagrams. I am ...