can water get hot enough to start a fire?

Answer 1

Yes it can, but it's not the water itself, it's the vapors it makes when heated and pressurised. These vapors are called supercritical steam, that can be used to drive a turbine.It reaches a temperature of 650 degrees C. There's a lot of material that has a lower flash point than that. Once water is evaporated, it becomes air.

Answer 2

Water need not be hot to start a fire. Water reacts with certain elements violently and this could cause a fire.

Water boils at 100 degrees, but, when under pressure, very high temperatures can be realised, this is called superheated steam.

http://en.wikipedia.org/wiki/Steam_explosion

In most cases to start a fire you need a source of oxygen. Water and steam are non flammable liquids and will block out oxygen, which is why water is used for putting fires out.

With superheated steam the actual temperature can cause other things to react or melt, so from this point of view it can be a fire risk

Answer 3

What the evaporated water people aren't realizing is that even evaporated water is still water. So, yes, water can get hot enough to start a fire but, it must also be pressurized and forced at its target that it is to catch on fire.

Answer 4

A hose is linked to the hearth hydrant, then the valve is opened to offer an invaluable source of water, on the order of 350 kPa (50 lbf/in²) (this stress varies in accordance to area and relies upon on countless factors such as the size and site of the linked water important). This hose would properly be extra suitable linked to a fire engine, that can then use an invaluable pump to advance the water stress and doubtless chop up it into different streams. The hose could be linked with a threaded connection or a Storz connector. Care could be taken to not open or close a fire hydrant too quickly, as this would create a water hammer that can injury interior of reach pipes and kit. The water interior a charged hoseline reasons it to be very heavy and intense water stress reasons it to be stiff and unable to make a good turn whilst pressurized. while a fire hydrant is unobstructed, that may not a concern, as there is sufficient room to thoroughly place the hose. Clapper valveMost hearth hydrant valves are actually not designed to throttle the water bypass; they're designed to be operated finished-on or finished-off. The valving association of maximum dry-barrel hydrants is for the drain valve to be open at something different than finished operation. utilization at partial-beginning can for this reason bring about significant bypass straight away into the soil surrounding the hydrant, which, over the years, would reason intense scouring . A hose with a closed nozzle valve, or hearth truck connection, or closed gate valve is often linked to the hydrant previous to beginning the hydrant's important valve. while a Firefighter is working a hydrant, ideal own shielding kit, alongside with gloves and a helmet with face safeguard, are often worn. intense stress water coursing by way of a doubtlessly starting to be older and corroding hydrant could reason a failure, injuring the firefighter working the hydrant or bystanders. Chicago police motor vehicle parked illegally in front of a fire hydrant. be conscious the yellow line on the decrease by the hydrant.In maximum jurisdictions it extremely is unlawful to park a motor vehicle interior of a definite distance of a fire hydrant. In North usa the distances are often 3 to 5 m or 10 to fifteen feet, often indicated by yellow or purple paint on the decrease. interior the united kingdom, yellow strains are used to maintain autos from parking over underground hydrants. Parking regulations are often times disregarded (enormously in cities the place accessible highway parking is scarce), although those rules are often enforced. the reason being that hydrants could be seen and accessible in an emergency.

Answer 5

Yes, but no. Water in it's liquid form can't. However, superheated steam (vaporized water) can, but must be held under high pressure until hot, then released. This has happened both in experiments and accidents.

One example of such superheated steam is that in a locomotive boiler, which is contained under 600 psi.

Answer 6

No, because it evaporates at 100 degree celcius, it needs to be like 4 times that to start a fire.

Answer 7

you canstart a fire by using a water balloon, bt squeezing the balloon into a sphere, like a magnafying glass would start a fire, but becuse water puts out fire, and it could never get hot enough, no.

Answer 8

No, b/c the hotter it gets, the more it evaporates, so eventually there won't be any water left to start a fire.

Answer 9

Yes, given a high enough pressure to keep the water water, you will be able to raise it's temperature to that of kindling.

Think of the underwater volcanoes. They have very high temperatures but you don't see large bubbles coming up from them. The ocean pressure stops the transition from liquid to vapor.

Answer 10

Yes, as high pressured steam it can. Once my brother held a paper towel over a kettle on the stove, directly over the little hole in the top of the kettle where the steam escapes and it caught on fire!!

Be safe!!