Signup
LoginSolid, Liquid and Gaseous states...
34 posts
-
-
Originally posted by Herzog_Zwei:Post in homework forum.
Note that the flame in a fire is a plasma. There is a so-called fourth state known as plasma but it is relatively hard to describe to primary school students so we don't teach it till A-levels.
I
never got taught that at A level... I got taught that 'fire' such
as that from stars was in fact a plasma but I got taught that real
fire is simply the energy released from a reaction in the form of
light and heat energy... to be in a state of plasma something must
have enough energy to free electrons...
-
-
-
Originally posted by Jezmeister: I
never got taught that at A level... I got taught that 'fire' such
as that from stars was in fact a plasma but I got taught that real
fire is simply the energy released from a reaction in the form of
light and heat energy... to be in a state of plasma something must
have enough energy to free electrons...
Reading wrong again! The visible flame is a plasma.
-
-
-
Originally posted by Jezmeister: I
never got taught that at A level... I got taught that 'fire' such
as that from stars was in fact a plasma but I got taught that real
fire is simply the energy released from a reaction in the form of
light and heat energy... to be in a state of plasma something must
have enough energy to free electrons...
plasma fire is sub catagorize under fire.
go wiki fire and plasma. yes they have difference
-
-
-
If I'm not wrong, the common fire we see is merely heated gas that glows. Plasma, by definition, is an 'ionized gas', which means it can be deflected by magnetism or electric charges. Unless temperature is so high as to ionize the gas, nope ur flame is not plasma.
Your candle is not powerful enough.
-
-
-
Originally posted by Herzog_Zwei:Post in homework forum.
Note that the flame in a fire is a plasma. There is a so-called fourth state known as plasma but it is relatively hard to describe to primary school students so we don't teach it till A-levels.Yes actually I heard that it's a fourth state known as plasma, and that is actually the reason I posted this topic in the first place. I wanted somebody to tell me that it is in fact, plasma.
However, there is one thing that is confusing me. Isn't plasma a form of ionized gas? If that is the case, it would be classified as matter (the fourth state). Then if fire is considered plasma, it would have a characteristic of matter that contradicts the statement that it is energy given out in the form of light.
Plasma = Mass
Energy =/= Mass
I hope you all understand what i'm saying.
-
-
-
Originally posted by Herzog_Zwei:???manyu882 talking nonsense again; the flame of a fire is a plasma as at high temperatures as the gases become strongly ioned due to creation of radicals.
sometimes i wanna know how old are u.
A flame is an exothermic, self-sustaining, oxidizing chemical reaction producing energy and glowing hot matter, of which a very small portion is plasma
-
-
-
regardless of the state of fire the greatest (or 2nd greatest) physicist of them all taught us that energy and mass are interchangable. ie. E = MC2. but that's just the way you phrased it i suspect, if you meant rather it can't be both at the same time you'd be right.
my knowledge of plasma is limited but I've done some reading cos I'm a physics geeky kinda guy and this sounded interesting.... annnyway i think i can explain it (woo if i can someone will probably correct me if i'm wrong)
essentially... both stories are correct. during the reaction that happens producing the flame all of this as basic chemistry should tell every one of us a large amount of 'swapping' of electrons goes on between molecules and elements to form a different product, and to anyone who knows their physics they should know it's the movement of the electrons to and from different energy levels that gives off the light energy we see as a flame. I should be right so far cos i've been taught all this... now if I'm right a plasma can form on a flame (or in) when electrons escape from the reaction causing the released gases to become ionised... it would be wrong to say that the visible flame itself is a plasma though methinks. I also think it would require a whole lot more energy input than your average household candle can provide but hey.
-
