I asked my tcher but she doesn't know how to explain my question. Not that she is not good, but she is a great tutor. My friend said that this a question that only someone who studied until the PHD who knows how to answer. But pls try to tell me the answer.
2006-07-11 02:57:33 · 11 answers · asked by Resha Valentine 2 in Science & Mathematics ➔ Chemistry
Hydrogen gas (H2) is flamable. When combined with oxygen (necessary for a combustian reaction) and sufficient activation energy (provided by the sparks) a reaction takes place. The reaction is highly exothermic producing heat, light, and sound(the three components of an explosion) as the hydrogen combines with oxygen to form H20.
2H2 + 02 > 2H20 + heat
2006-07-11 05:11:39 · answer #1 · answered by jvcc06 3 · 0⤊ 0⤋
Hydrogen is a flammable gas giving out energy when it reacts with oxygen to form water. When a spark is applied to a mixture of the two gases at atmospheric temperature and pressure an explosion occurs. The spark heats up a local area of the gas to a temperature at which reaction is initiated, the raction then gives out enough heat to be self sustaining and propagates through the rest of the mixture.
Hydrogen and oxygen only react with if the temperature and pressure are right. For example at room temperature no reaction esues but increase the temperature and the hydrogen burns. But if the pressure is increased at lower temperature and then the gases are heated only a slow burn occurs at the same temperature. The is a diagram to show this and there are three limits in the diagram within which the hydrogen/oxygen mixture will explode.
2006-07-12 04:35:47 · answer #2 · answered by zebbedee 4 · 0⤊ 0⤋
The electric spark provides just enough energy to a tiny bit of the hydrogen-oxygen mixture in order to get them to react (This is called the "energy of activation". When this little bit reacts, it releases a tremendous amount of energy as heat. This heat causes other parts of the hydrogen-oxygen mixture to then react, and it happens or "propagates" so fast that it is an explosion with a tremendous amount of heat released?
As you know, water is the byproduct.
2006-07-11 07:54:40 · answer #3 · answered by Roger S 1 · 0⤊ 0⤋
Because oxygen and hydrogen burn very, very fast, they will make an explosion when mixed with a spark.
Any reaction that produces a gas quickly will create an explosion if it's contained. That's why gunpowder, which burns normally, will explode if it's burned in a firework casing.
2006-07-11 03:01:38 · answer #4 · answered by poorcocoboiboi 6 · 0⤊ 0⤋
Burning and exploding are pretty similar processes, but at a very different rate. When something burns, it usually expands, either because the volume is greater or (as here) due to the release of heat. When something is burning, this just results in a column of smoke, or something similar, but in an explosion, the expansion happens faster than the surroundings can get out of the way, and you get a shock wave.
2006-07-11 03:33:19 · answer #5 · answered by anoddlad 1 · 0⤊ 0⤋
to get carry of the hydrogen and oxygen, you're able to take 2 attempt-tubes with caps, fill them with water so as that there isn't any air interior them, and placed them upside-down over the electrodes so as that the hydrogen and oxygen gases, lighter than water, upward push to the "right" of the attempt tubes. when you're achieved the test, cap the attempt tubes in the previous removing them from the water. (observe that when sufficient hydrogen has accrued interior the attempt tube, it is going to start to drift and you're able to desire to maintain it down in case you like greater.) those gases would be saturated with water. i'm sorry - there isn't any way of removing the water (interior the lab that's finished via passing the gasoline via lime or some thing like that, which will take in water, yet you are able to no longer somewhat do this, as a results of fact which you haven't any longer have been given lines.) Hydrogen and oxygen gasoline do no longer combine easily as a results of fact the H-H and O=O bonds are particularly good, which makes the reaction kinetically very sluggish. An explosion will surely take place in case you gentle the hydrogen with a tournament. it somewhat is conceivable to get hydrogen to burn easily in oxygen - you're able to do it with a Bunsen burner (yet you'll want various hydrogen). yet in any different case, which I regrettably do no longer think of would be conceivable for you, is to apply platinum gauze, that's a catalyst for virtually any reaction regarding molecular hydrogen.
2016-12-10 04:37:27 · answer #6 · answered by Anonymous · 0⤊ 0⤋
hydrogen with oxygen will make an explosion when electric-spark is
applied as hydrogen is a combustible gas and oxygen is a supporter
of combustion. thus it is said that a combustible substance and a supporter of combustion is necessary to produce a explosion.
2006-07-12 00:48:55 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Becaure hydrogen is explosive. It needs the oxygen to burn. They comine to form water which is much more stable than H2 and O2. That is why you get the fire and heat. It is releasing a large amount of energy.
2006-07-11 13:48:03 · answer #8 · answered by jsn77raider 3 · 0⤊ 0⤋
Hydrogen is a highly flammable gas but will only burn (or explode) in the presence of oxygen.
2006-07-11 03:01:30 · answer #9 · answered by ebk1974 3 · 0⤊ 0⤋
Hydrogen is volotile and wants to react. Under some circumstances it will explode.
2006-07-12 06:26:20 · answer #10 · answered by Mark H 2 · 0⤊ 0⤋