# Questions tagged [phase-transition]

A phase transition is a change in the nature of a phase or in the number of phases of a system as a result of a change in the external conditions. Examples: melting/freezing, vaporization/condensation, ferromagnetic transition, superconducting transition.

798 questions
Filter by
Sorted by
Tagged with
51 views

### Reconciling the definition and description of SSB in statistical mechanics

In any field theory, Spontaneous Symmetry Breaking (SSB) is defined as a phenomenon where the vacuum state (obtained by minimizing the potential) of the theory does not enjoy the full symmetry of the ...
17 views

### Does vapor latent heat depend on temperature? [duplicate]

Adding energy to water makes it's temperature increase. This continues until it reaches 100 °C (at 1 atm) when it turns to vapor with a vaporization energy of 2257 kJ/kg. But if we lower the pressure ...
34 views

### Is it possible to estimate the composition of a mixture between ice and liquid water from a temperature heat graph? [closed]

I'm confused whether the equation for thermal equilibrium can be used to obtain the composition of a mixture with only having as information a graph. This happened when I attempted to solve a problem ...
35 views

### Asymptotic freedom both in IR and UV

I am wondering if there are any (insightful) examples for models which exhibit asymptotic freedom both in the UV and the IR. I know it sounds odd, but if anyone has come across something like that, ...
39 views

### Yang-Lee article on phase transition (1952): possible problem in lemma demonstration

I'm studying the first article of Yang-Lee on phase transition C.N.Yang and T.D.Lee, Physical Review, ”Statistical Theory of Equations of State and Phase Transitions. I. Theory of ...
59 views

### Is there a way to perform Ising model simulations with a Game of Life approach?

This question may turn out to be trivial or nonsensical as I do not have more than undergraduate understanding of both the Ising model and computational physics simulations. I just wanted to post ...
55 views

### Definition of glass transition

I am getting confused about the definition of a "glass transition". I read for example that it can be a transition from a rubber state to a brittle state in polymers. In this case therefore I would ...
27 views

### What are first and second order phase changes?

In my thermodynamics lecture course, the Ehrenfest equation for a second order phase transition was derived from considering the following graphs, however there was little context in the section for ...
26 views

### Order parameter to quantify clustering?

I have a 1D system containing $N$ particles having positions $\{x_1(t),x_2(t),\dots,x_N(t)\}$ in a box of size $L$ with periodic boundaries. The number of particles is conserved. The dynamics of the ...
58 views

### Why can you find running water lower than $0^\circ \text{C}$?

I was looking at the phase diagram for water: It seems there is not much of a region on the diagram at which you can be in the liquid phase, for temperatures lower than $0^\circ \text{C}$. I am ...
152 views

### Higgs mechanism and phase transition

Generally speaking, phase transitions divide into two types: First order and second order. To me, Higgs field's SSB sounds like a second-order one though I don't know the dependency of Higgs field's ...
48 views

### Adiabatic compression of liquid water and vapor in equilibrium [closed]

I'm trying to solve Exercise 6.16 in Garrod's Statistical Mechanics and Thermodynamics. Here is what I've noticed so far. Since $V=n_lV_l+n_gV_g$ where $n_{(\cdot)}, V_{(\cdot)}$ are molar ...
58 views

### Can the centre of a rocky planet ever freeze?

When a rocky planet like the Earth or Mars forms the gravitational potential energy is converted to heat energy within the planet. Planets lose heat energy over time by emitting radiation. But is ...
37 views

### Does $T \frac{d}{dT} (\frac{L}{T})=C_p(B) - C_p(A)$ hold, where L(T) is the latent heat of phase transition $A\rightarrow B$?

In Garrod's Statistical Mechanics and Thermodynamics, Exercise 6.15 contains the claim that $T \frac{d}{dT} (\frac{L}{T})=C_p(B) - C_p(A)$. But it seems to me that this is false, for the derivative ...
66 views

### Phase transition on magnetic materials

Is ferromagnetic to paramagnetic phase transition a reversible process? If I start with a ferromagnetic material with a spontaneous magnetization below the Curie temperature, and then I start to heat ...
24 views

### Phase Fluctuations in a BKT transition

The 1D Bose-Hubbard model exhibits a BKT-type quantum phase transition along trajectories of constant density in the $\mu$ vs. $t$ phase diagram (where $\mu$ is the chemical potential and $t$ is the ...
94 views

### Ice Melting Faster in Running Water?

Is it me or have anybody else noticed that ice melts way faster in running water than if you keep it in water or just keep it on any rigid surface.The difference is enormous .Why is it so?
23 views

107 views

### Some Questions about the Critical Point

I'm currently trying to understand the physics of phase transitions and I'm having a hard time doing that. First of all, the discussions on the topic seem to be confusing and there is no methodical ...
130 views

### Is Bose-Einstein condensation a quantum phase transition?

Classical phase transitions are driven by thermal fluctuations which die out at $T = 0$, hence classical phase transitions don't happen at zero temperature. Quantum phase transitions are driven by ...
44 views

### Boiling water quites down [duplicate]

When I heat water in my electric kettle the noisy turbulence gets louder and louder as the water nears boiling. Shortly before the kettle turns itself off (presumably when it detects the temperature ...
128 views

### Research: Mott insulator and topological order

I'm an experimentalist who is mainly focusing on strongly correlated electron systems (SCES), in particular Metal-insulator (Mott) transitions in the classical example $V_2 O_3$. Recently I decided to ...
127 views

### Does stripping electrons from atoms or adding them affect the state of matter in any way?

Does electric charge affect melting, boiling point or sublimation temperature?
56 views