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Graihagh - That's because the bond between two hydrogen atoms and an oxygen is so strong, you need lots of energy to pull them apart. Much more energy than, say, a wood-fire creates and that's why firemen use water to put out fires. The water cools the combustible material and also helps stop the fuel come into contact with the air, the oxygen ...
Answer. Dave - You can do it electrically with about 1.3 volts of electricity. However, to do it thermally, you've got to heat it up to over 2,000 degrees centigrade. It's one of these things whereby the hotter you get, the more complete the dissociation - you split the molecules up. It is actually a suggested way of making hydrogen - you heat ...
Adam - The first thing that happens here is that all the water gets evaporated off so you get loads of steam. Microwaves are set the frequency that water is very receptive to which means that water heat up. But all of the stuff, in bread in this case, is still getting slightly excited by the microwave energy. So it's just that water is normally ...
You should never burn wood with paint on it unless you know, specifically, what kind of paint it is, that the paint is question is safe to burn, and that there is no other chemical treatment on ...
It's about 600 degrees. You can actually pass your hand through the bottom of the flame because all the hot air is rising up the bottom of the flame is where all the cold air from the room is being sucked in. The bottom of the flame is quite cold. You can stick your hand through, get a bit of soot on it. You can do that so long as you do it at ...
The paper cup also acts as an insulator, reducing heat transfer from the outside to the inside. For a substance to burn, it must be combustible.On the other hand, water not only being ...
As Leslie points out: "Yes you will lose energy by drinking a litre of water and then passing it out as warm urine but the energy you use is only equivalent to eating a small apple. Definitely less energy than you would gain by eating a block of chocolate or a packet of potato crisps." A packet of crisps, for example, contains about 200 ...
Yes. To burn a compound you need a halogen with a higher energy than the one in the salt. So if you put sodium chloride in a fluorine rich environment and apply a flame it will burn.
You add this heat from the change of gas to a liquid plus the original 100°, and you will get a worse burn. A burn from water would only be 100°, but the burn from steam is 100° in addition to ...
Can water burn with batteries in it? No. Water will not burn, although the hydrogen and oxygen that make it up are both highly flammable. It is possible that putting a battery in water could ...