aommaster Posted January 18, 2004 Posted January 18, 2004 What are the following changes of state called? Solid To Plasma Liquid To Plasma Gas To Plasma Plasma To Gas Plasma To Liquid Plasma To Solid I know, i know, it's all related to plasma (hence the title). I searched for it on google, but came up with nothing, so i thought i'd post it here! Edit: Some of the symbols weren't working porperly, i had to change them to 'to's!
YT2095 Posted January 19, 2004 Posted January 19, 2004 gas to plasma would be complete ionisation plasma to gas would probably be De-Ionisation the others don`t exist, although the thought of seeing liquid plasma (other than that used in hospitals, LOL) would certainly be interesting
ski_power Posted April 3, 2004 Posted April 3, 2004 What is plasma? Isn't it a form after gas, or is it between liquid and gas? I thought it was after gas, but after reading yt's post, I'm now confused.
swansont Posted April 3, 2004 Posted April 3, 2004 plasma to gas would probably be De-Ionisation Or recombination.
swansont Posted April 3, 2004 Posted April 3, 2004 What is plasma? Isn't it a form after gas, or is it between liquid and gas? I thought it was after gas, but after reading yt's post, I'm now confused. A plasma is basically a gas of charged particles. Once the temperature is high enough, there is enough thermal energy to ionize atoms and keep them from recombining. The behavior of such a collection of particles would be distinct from the other more common phases of matter. 1
ski_power Posted April 4, 2004 Posted April 4, 2004 Ok, are plasma useful anywhere. And how does it behave differently from a gas? Because it basically is gaseous right?
aommaster Posted April 4, 2004 Author Posted April 4, 2004 Plasma is useful in the fact that it is used to make fluorescent lights. Those ones with power conservation.
YT2095 Posted April 4, 2004 Posted April 4, 2004 and cutting torches for metals like titanium and tungsten.
aommaster Posted April 4, 2004 Author Posted April 4, 2004 And how does it behave differently from a gas? Because it basically is gaseous right? What about that bit. I don't actually know about that.
ski_power Posted April 4, 2004 Posted April 4, 2004 How come in tube lights plasma is used? Are those mercury vapours in plasma state? And in normal room temperature, how does it remain plasma, or does it become plasma after the application of that high voltage?
swansont Posted April 4, 2004 Posted April 4, 2004 Ok, are plasma useful anywhere. And how does it behave differently from a gas? Because it basically is gaseous right? One difference is that it contains ions, so they have interactions via the electric field rather than through collisions as with a gas. There is more here with more links included. 1
aommaster Posted April 4, 2004 Author Posted April 4, 2004 swansont, are u a physician? You seem to know a lot about this sutff
swansont Posted April 4, 2004 Posted April 4, 2004 swansont, are u a physician? You seem to know a lot about this sutff No, I'm a physicist. (a physician is a medical doctor)
iglak Posted April 5, 2004 Posted April 5, 2004 The remaining parts of those atoms are left with a positive charge, and the detached negative electrons are free to move about. the most important part of that link, when looking for a definition of plasma. plasma = nuclei of atoms (protons + nuetrons) and free electrons.
aman Posted April 5, 2004 Posted April 5, 2004 Don't the simplest plasmas just strip electrons off inert gases causing photons to be released. This can be done with electrical potentials and low temperatures. The plasma most people think about in Sci-fi or stars is at higher temperatures and electrical fields to ionize down to elementary particles. A plasma should search for a stable configuration as soon as exernal forces are stopped as they need energy added constantly to exist. Just aman
ski_power Posted April 5, 2004 Posted April 5, 2004 Don't the simplest plasmas just strip electrons off inert gases causing photons to be released. For removing electrons we need to supply energy, and photons are released only if the electrons jump from the higher orbit to the lower orbit. But in the process of removing electrons they don't jump to the lower orbit. Thus no photons are released.
Guest erebus Posted June 9, 2004 Posted June 9, 2004 Ok, are plasma useful anywhere. And how does it behave differently from a gas? Because it basically is gaseous right? I believe our sun and all stars are made up of plasmatic matter. Do not quote me on this, but I might have read somewhere that most of the matter in the universe is of plastmatic nature(other than dark matter, of which we could not account for quite yet).
aommaster Posted June 9, 2004 Author Posted June 9, 2004 Very true. Thinking about it, all stars are mostly, or almost completely made pup of plasma. It was something like 99.7% or something of our universe was plasma. Most people would think gasses.
Crash Posted June 9, 2004 Posted June 9, 2004 How many states of matter can there be? is there a finite amount to varitaions that can exist (and im not talkign naturally existing)
aommaster Posted June 9, 2004 Author Posted June 9, 2004 hmmmm... from what I heard: -Solid -Liquid -Gas -Plasma -Bose-Einstein condensate -Fermionic condensate I, however, have no idea whether there is a finite amount of states of matter, I think that htere must be. Also, I know very little about the last two!
shardsofnarsil Posted June 9, 2004 Posted June 9, 2004 well i'm making up a phase of matter for my science fiction novel to get around einstien's hyperspace theories. i figure if we keep discovering more phases it's not too far-fetched to assume there's more we haven't discovered, and it also wouldn't be too far-fetched to assume that maybe Einstein's theory only applies to matter in the phases we are familiar with, and if we could figure out how to convert a solid into "hypermatter," it could travel at speeds faster than light. (does that sounds plausible enough?) so anyway that's all speculative and does nothing to answer your question but it's fun to think about shards'
TheProphet Posted July 16, 2004 Posted July 16, 2004 well i'm making up a phase of matter for my science fiction novel to get around einstien's hyperspace theories. i figure if we keep discovering more phases it's not too far-fetched to assume there's more we haven't discovered' date=' and it also wouldn't be too far-fetched to assume that maybe Einstein's theory only applies to matter in the phases we are familiar with, and if we could figure out how to convert a solid into "hypermatter," it could travel at speeds faster than light. (does that sounds plausible enough?) so anyway that's all speculative and does nothing to answer your question but it's fun to think about shards'[/quote'] Well then u must convert yourselve into massles particels first.. too even reach the Speed of light.. Travel for u would then be very nice since time to u would be apearing to halt! Faster than that theories says that those particles would need to have imaginary mass.. Or maybe travel backwards in time (all extremly speculative) Best bet is to somehowe create fictionel wormholes to be able to warp space instead! Good luck on the Writing!
aommaster Posted July 18, 2004 Author Posted July 18, 2004 I've heard of Tachyons As a state of matter?
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now