en>John of Reading: Typo/general fixing, replaced: Untracable → Untraceable per source using AWB

2014-12-18T16:32:05Z

Typo/general fixing, replaced: Untracable → Untraceable per source using AWB

67.164.92.75: /* Return Addresses */ some more: R -> R0, Kx -> K_x

2013-11-13T02:43:25Z

Return Addresses: some more: R -> R0, Kx -> K_x

← Older revision		Revision as of 04:43, 13 November 2013
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	~~Greetings~~. The ~~writer's title~~ is ~~Phebe~~ and ~~she feels comfortable when people use~~ the ~~full name~~. ~~Bookkeeping~~ is ~~what I do~~. ~~One~~ of the ~~issues she loves most~~ is to ~~do aerobics~~ and ~~now she~~ is ~~attempting to earn cash with it~~. ~~Minnesota has always been his house but his spouse wants them~~ to ~~move~~.<br><br>~~Have~~ a ~~look at my web site;~~ [~~http://spermdonorinfo~~.co.~~uk/groups/eliminate-~~a-~~yeast~~-~~infection~~-~~with~~-~~one~~-of-~~these-tips/ std testing at home]~~		{{Unreferenced stub\|auto=yes\|date=December 2009}}
			Temperature is a statistical quantity. The formal definition is T = dU/dS, the change in internal energy with respect to entropy holding volume and particle number constant. A practical definition comes from the fact that the atoms, molecules, or whatever particles in your system have average kinetic energy. The average specifically means to average over the kinetic energy of all the particles in your system.

			If the [[velocity\|velocities]] of a group of [[electron]]s, e.g., in a [[plasma (physics)\|plasma]], follow a [[Maxwell-Boltzmann distribution#Distribution of the velocity vector\|Maxwell-Boltzmann distribution]], then the '''electron temperature''' is well-defined as the [[temperature]] of that distribution. For other distributions, two-thirds of the average energy is often referred to as the temperature, since for a Maxwell-Boltzmann distribution with three [[Degrees of freedom (physics and chemistry)\|degrees of freedom]], <math>\langle E \rangle = (3/2) \langle k_BT \rangle</math>.

			The [[International System of Units\|SI]] unit of temperature is the [[kelvin]] (K), but using the above relation the electron temperature is often expressed in terms of the energy unit [[electronvolt]] (eV). Each kelvin (1 K) corresponds to 8.6173324(78)×10<sup>−5</sup> eV; this factor is the ratio of the [[Boltzmann constant]] to the [[elementary charge]].

			The electron temperature of a plasma can be several orders of magnitude higher than the temperature of the neutral species or of the [[ion]]s. This is a result of two facts. Firstly, many [[plasma source]]s heat the electrons more strongly than the ions. Secondly, atoms and ions are much heavier than electrons, and energy transfer in a two-body [[collision]] is much more efficient if the masses are similar.

			{{DEFAULTSORT:Electron Temperature}}
			<!--Categories-->
			[[Category:Plasma physics]]


			{{Physics-stub}}

en>Douglas W. Jones: Add the primary reference for the subject, get rid of unreferenced template

2012-07-20T21:01:39Z

Add the primary reference for the subject, get rid of unreferenced template

New page

Greetings. The writer's title is Phebe and she feels comfortable when people use the full name. Bookkeeping is what I do. One of the issues she loves most is to do aerobics and now she is attempting to earn cash with it. Minnesota has always been his house but his spouse wants them to move.<br><br>Have a look at my web site; [http://spermdonorinfo.co.uk/groups/eliminate-a-yeast-infection-with-one-of-these-tips/ std testing at home]

Mix network - Revision history

en>John of Reading: Typo/general fixing, replaced: Untracable → Untraceable per source using AWB

67.164.92.75: /* Return Addresses */ some more: R -> R0, Kx -> K_x

en>Douglas W. Jones: Add the primary reference for the subject, get rid of unreferenced template