Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Phase Diagram01:19

Phase Diagram

6.9K
The phase of a given substance depends on the pressure and temperature. Thus, plots of pressure versus temperature showing the phase in each region provide considerable insights into the thermal properties of substances. Such plots are known as phase diagrams. For instance, in the phase diagram for water (Figure 1), the solid curve boundaries between the phases indicate phase transitions (i.e., temperatures and pressures at which the phases coexist).
6.9K
Phase Diagrams02:39

Phase Diagrams

48.5K
A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
48.5K
Phase Transitions: Sublimation and Deposition02:33

Phase Transitions: Sublimation and Deposition

19.5K
Some solids can transition directly into the gaseous state, bypassing the liquid state, via a process known as sublimation. At room temperature and standard pressure, a piece of dry ice (solid CO2) sublimes, appearing to gradually disappear without ever forming any liquid. Snow and ice sublimate at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. When solid iodine is warmed, the solid sublimes...
19.5K
Phase Transitions02:31

Phase Transitions

22.2K
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
22.2K
Phase Transitions: Vaporization and Condensation02:39

Phase Transitions: Vaporization and Condensation

20.4K
The physical form of a substance changes on changing its temperature. For example, raising the temperature of a liquid causes the liquid to vaporize (convert into vapor). The process is called vaporization—a surface phenomenon. Vaporization occurs when the thermal motion of the molecules overcome the intermolecular forces, and the molecules (at the surface) escape into the gaseous state. When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules...
20.4K
Arrhenius Plots02:34

Arrhenius Plots

46.4K
The Arrhenius equation relates the activation energy and the rate constant, k, for chemical reactions. In the Arrhenius equation, k = Ae−Ea/RT, R is the ideal gas constant, which has a value of 8.314 J/mol·K, T is the temperature on the kelvin scale, Ea is the activation energy in J/mole, e is the constant 2.7183, and A is a constant called the frequency factor, which is related to the frequency of collisions and the orientation of the reacting molecules.
The Arrhenius equation can be used...
46.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Low melt viscosity enables melt doublets above the 410-km discontinuity.

Nature communications·2025
Same author

The structure and stability of Fe<sub>4+x</sub>S<sub>3</sub> and its potential to form a Martian inner core.

Nature communications·2025
Same author

Deformation of two-phase aggregates with in situ X-ray tomography in rotating Paris-Edinburgh cell at GPa pressures and high temperature.

Journal of synchrotron radiation·2023
Same author

Deep mantle origin of large igneous provinces and komatiites.

Science advances·2022
Same author

A new high-pressure technique for the measurement of low frequency seismic attenuation using cyclic torsional loading.

The Review of scientific instruments·2021
Same author

Quantitative 4D X-ray microtomography under extreme conditions: a case study on magma migration.

Journal of synchrotron radiation·2021

Related Experiment Video

Updated: Jan 6, 2026

Phase Behavior of Charged Vesicles Under Symmetric and Asymmetric Solution Conditions Monitored with Fluorescence Microscopy
10:08

Phase Behavior of Charged Vesicles Under Symmetric and Asymmetric Solution Conditions Monitored with Fluorescence Microscopy

Published on: October 24, 2017

9.6K

Argon-neon binary diagram and ArNe2 Laves phase.

Agnès Dewaele1, Angelika D Rosa2, Nicolas Guignot3

  • 1CEA, DAM, DIF, F-91297 Arpajon, France.

The Journal of Chemical Physics
|October 3, 2019
PubMed
Summary

Researchers discovered a new argon-neon compound (ArNe2) under high pressure. This stable Laves phase compound shows behavior similar to ideal gas mixtures and can be used as a pressure medium.

More Related Videos

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
06:26

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Published on: May 15, 2017

7.5K
Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers
12:37

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Published on: September 4, 2015

12.9K

Related Experiment Videos

Last Updated: Jan 6, 2026

Phase Behavior of Charged Vesicles Under Symmetric and Asymmetric Solution Conditions Monitored with Fluorescence Microscopy
10:08

Phase Behavior of Charged Vesicles Under Symmetric and Asymmetric Solution Conditions Monitored with Fluorescence Microscopy

Published on: October 24, 2017

9.6K
Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
06:26

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Published on: May 15, 2017

7.5K
Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers
12:37

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Published on: September 4, 2015

12.9K

Area of Science:

  • High-pressure physics and chemistry
  • Materials science
  • Condensed matter physics

Background:

  • Experimental studies of binary mixtures under extreme conditions are crucial for understanding material behavior.
  • Argon (Ar) and neon (Ne) are noble gases with distinct atomic properties, making their mixtures under pressure an interesting subject.

Purpose of the Study:

  • To investigate the phase behavior and structural properties of argon-neon mixtures at high pressures.
  • To identify any novel stoichiometric compounds formed in the Ar-Ne system.
  • To determine the stability and equation of state of observed phases.

Main Methods:

  • High-pressure experiments were conducted on argon-neon mixtures.
  • Structural characterization was performed to identify the crystal structure of any formed compounds.
  • Equation of state measurements were taken up to 65 GPa.

Main Results:

  • A stoichiometric compound with the composition ArNe2 was observed.
  • This compound exhibits a hexagonal MgZn2 (Laves phase) structure.
  • ArNe2 is stable up to at least 65 GPa and its equation of state aligns with an ideal Ar+2Ne mixture.
  • The Ar-Ne phase diagram resembles hard sphere mixture predictions, indicating minimal electronic interactions.

Conclusions:

  • The formation and stability of the ArNe2 Laves phase compound have been experimentally confirmed.
  • The Ar-Ne system behaves like a mixture of hard spheres at high pressures, suggesting simple interatomic interactions.
  • ArNe2 is identified as a potential quasihydrostatic pressure transmitting medium for moderate pressures.