Gas Phase Ion Chemistry vs. Plasma Chemistry


by Kryptonite-19
Tags: chemistry, phase, plasma
Kryptonite-19
Kryptonite-19 is offline
#1
Feb4-14, 12:38 AM
P: 5
What is the difference between "Gas Phase Ion Chemistry" and "Plasma Chemistry"? If one wants to learn about the ionization and dissociation processes of hydrogen gas are either of theses fields appropriate to study?
Phys.Org News Partner Chemistry news on Phys.org
Space-tested fluid flow concept advances infectious disease diagnoses
New, more versatile version of Geckskin: Gecko-like adhesives now useful for real world surfaces
Researcher develops novel wastewater treatment fabric
maajdl
maajdl is offline
#2
Feb4-14, 12:53 AM
P: 263
I think that, by its definition, the plasma phase implies some degree of ionization.
Therefore the temperature must be high enough to reach a sufficient ionization level.
Ionization and dissociation are therefore more important in a plasma than in a "normal" gas.
However, even at "ambient" temperature, there is some ionization.
In addition, ionization can be obtained by other means that high temperatures: like by exposition to radiations (UV for example).
You will find a lot of data about ionization equilibrium in plasma physics.
See for example the Saha equation:

http://en.wikipedia.org/wiki/Saha_ionization_equation
Kryptonite-19
Kryptonite-19 is offline
#3
Feb4-14, 01:19 AM
P: 5
I've read that "Plasmas are gas phase systems". So are "Gas Phase Ion Chemistry" and "Plasma Chemistry" different names for the same field? Is this an appropriate field to study in order to learn about the dissociative ionization of hydrogen gas?

maajdl
maajdl is offline
#4
Feb4-14, 01:35 PM
P: 263

Gas Phase Ion Chemistry vs. Plasma Chemistry


Please read Wikipedia about the definition of a plasma:

http://en.wikipedia.org/wiki/Plasma_(physics)

Of course we can find common aspects between a gas and a plasma.
But ionization is specific to the plasma state.
Ionization has many observable consequence that makes a plasma different from a gas.


Register to reply

Related Discussions
Does Organic Chemistry Have Strong Roots in Computational Chemistry? Chemistry 13
Uni course- Biophysical Chemistry, or Physical chemistry Academic Guidance 1
Will a PhD in Theoretical Chemistry restrict my future post-doc to chemistry? Academic Guidance 1
Chemistry - Trying to name aromatic compounds and organic chemistry molecules Biology, Chemistry & Other Homework 1
Chemistry in the Real World - Super Quick Question on chemistry/pools Biology, Chemistry & Other Homework 1