Meet the team Our Sponsors Contact us. Can water be boiled in a paper cup? Anup asked the Naked Scientists: What do you think? Water boils at C and paper burns somewhere in the ballpark of C. You could certainly heat the paper to C and the water would boil without burning the paper.
If you put a direct flame to the cup, you should also be ok, so long as the paper is thin and the part of the paper cup touching flame is also touching water.
This is because objects in contact tend to equalize their temperature. Water boils at C, and it stays at C as you add extra heat to it--you only change the rate at which is boils. This means the paper touching it wants to stay at C as well and it transfers any extra heat to the boiling water in order to do so.
So if you apply a direct flame to the bottom of a paper cup filled with water, the paper shouldn't burn.
Of course if the paper is thick so that it can't transfer the heat from the outside to the water quickly enough or if the water boils off, then the paper can burn. Geezer Naked Science Forum King!
Of course, you could always heat up a rock quartz is quite good in a fire, then drop it into the paper cup containing the water. But stand well back, and wear safety glasses. What possible problem did the original poster envisage? How long does 2 cups of water boil? Well I went and expiremented on this. I got 2 cups of water in a pan but it on my stove at high and it took 4 minutes for it to really get those bubbles going.
So to your answer it is four minutes. You can boil water in a paper cup over a direct flame without burning it How can you explain that? This is only how i explained it to myself after i did the experiment, so it might not be right.
Burning is the result of a combustion reaction, and combustion reactions requir … e a certain amount of activation energy to start. When the paper is in contact with water, the energy from the open flame that would usually start the combustion reaction is transferred to the water before the paper can ignite.
This raises the temperature of the water and it will eventually reach boiling point. Now when all the water has evaporated, then the cup burns because there is nowhere left for the heat to be transferred to. For 4 cups of boiling water do you boil 4 cups of water or do you measure water after boiling? Where do you get a cup to boil water on clubpenguin? It's in a tree ether by a long log or a tree stump.
How long does it take to boil a cup of water? Ranked from most important to less important, that depends on: Why does a paper cup with water in it not burn? How can water be boiled in a paper cup without causing any damage to the cup? This is according to the law,the exchange of heat energy always takes place from a body at higher temperature to a body at a lower temperature until a thermal equilibrium is e … stablished between the hot and cold body.
Would water vapor burn paper if placed over a boiling cup? I probably wont get hot enough to burn paper if just placed over a cup, A good experiment that you can do is boil some water in a flask.
Place a bunsen burner under the copper coil. Can you boil water in a paper bag?
Nov 09, · Boiling water in a paper cup isn't as hard as it looks! If you held the cup at an appropriate distance from the flame, the water in the paper should have eventually boiled. The circular rim on the bottom may have burned. If your paper cup had a waxy coating, the wax may have melted off. The paper cup with sand will burn slightly/5(64).
Turns out, as long as the cup does not contain wax (which would draw some of the heat, thereby preventing the water from reaching a temperature hot enough to boil), a paper cup could in fact stand the heat of an open flame without catching fire while transferring the .
Just fill a paper cup with water and start trying to burn it from the outside. The water will boil vigorously inside the cup, but the paper itself will not combust. It's tempting to say that the water keeps the paper from reacting with oxygen, which is needed for the oxidization process of fire. (a) Take some water in a paper cup and heat it. It is observe that it is possible to boil water without burning the paper cup. This is due to the reason that he heat given by the flame is quickly transferred from the paper cup to the water. As a result the temperature if the paper does not reach the ignition temperature and hence is not burned.
Jun 06, · You could certainly heat the paper to C and the water would boil without burning the paper. If you put a direct flame to the cup, you should also be ok, so long as the paper is thin and the part of the paper cup touching flame is also touching water.