If gas is completely contained in a can and cannot excape, what happens inside the can as the temp gets hot?
107278
the pressure rises.  this is because the molecules move faster.  if you want a formula use PV=nRT.  solve for P to get  P = (nRT)/V .\n\nsince the can is sealed, Volume stays the same.  R is a constant value anyway, n is the number of moles, which stays the same.  if you increase T, then P has to increase as well
134997
I know that Gasoline and the Carbon chained fuels separate into water and thicker part after so much time of storage if exposed to air.  If you keep an inert gas in the container you will be okay.  Doesn't go "bad" per se, but just won't burn after like 5 years of free O2.
213553
There is no gas in a thermostat. It is controlled by a metal or mercury.
745608
liquid...at 0 C it would be frozen and at 100 C it would be gas, since 75 is not yet boiling, the water would still be liquid
139052
Water vapour occupies much more space than liquid water. When you boil the water a lot of it vapurises, the water vapour pushes a lot of air out of the can. When you seal the can no more air can get back in to replace it. As the water vapour cools it turns back into liquid water. With no air to replace it the pressure in the can drops- a lot. The pressure of the air outside the can of course is the same. With very little air inside pushing out and normal pressure outside pushing in the air crushes the can.
575347
No, it would still freeze in an air free enviroment, though it expands so would destroy the container. Try filling an empty bottle completly with water (and therefore no air) and seal it so the air can't get in. It will still frezze without taking on air, and probably cause the bottle to split or strech.
82527
This is not chemistry, but physics. I presume you are boiling water in a can, then sealing it and cooling it. There is then less pressure inside the can, since the water takes up less space than the water vapor. There is now more pressure outside the can than inside the can. You have unbalanced forces, and the can is unable to resist the pressure.\n\nThis can of course get far more complicated, and we can discuss the ductility of the can, and continuum mechanics of the can, and its chemistry, but I do not think you want anything that advanced. If you do, let me know.
898045
If you mean an aqueous solution of AN, then all it's gonna do it splatter, not explode.\n\nIf you mean you are trying to boil AN, not an aqueous solution, then you are correct, that is insane.\n\nUsually AN will decompose into nitrous oxide when heated.
1154531
Just make sure you are swimming slightly b/c if you are not moving you will get a heat shield ora thing around you. Similar to that fume thing when you put gas in your car.
1113770
If it were possible to extract the heat, it would self-extinguish and cease to be a flame. You can have an invisible flame with no colour, if I remember rightly, burning pure alcohol produces this.
224663
According to Charle's Law, the volume and temperature of a gas are related as follows,\n\nV1 / T1 = V2 / T2\n\nSo if you half the initial temperature, the volume of the the gas would need to be halfed aswell in order for the above eqaution to stay true.\n\nWhen the temperature of gas is decreased (all other things remaining constant), its volume decreases aswell.  The same for when a gas's temperature increases, the gas expands.
263812
Same as any explosion. Contain the expanding gas in a strong enough container long enough till the pressure builds, and BOOM.
827729
it all depends on what Temperature is acting upon.  If your talking about a solid, no, not really, if it does, it is negligible.  However, Temp. does affect the density of liquids, most liquids become more dense as temp. get colder, and less dense if the temp gets higher.  If you are talking about gasses, then the temp will affect both volume and density. think of a balloon. If you put a balloon outside in the winter, it will become smaller.  This is because the density of the air inside goes up and the volume goes down.... \nThe formula to determine what happens with a gas is PV=nRT, whereby P=the atmospheric pressure, V=volume, n= the #of moles of a gas R=is the ideal gas constant and T=temp... hope that helps.
957050
all things have a solid liquid and gas state. it just depends on the temperature.
1068258
If you mix a hydrocarbon gas/vapor with oxygen, nothing will happen. \n\nHowever, if you then add a spark or flame (which provides the activation energy needed for the reaction to proceed), you will wind up with a fire or an explosion as the hydrocarbon combusts (burns), changing into water and carbon dioxide.
475191
it's my understanding that it doesn't really 'explode' - when liquids freeze they generally expand and become hard. since the coke is contained by a can, with part of the top thinner around the tab (due to the scoring), when the liquid starts freezing in some part of the can the remaining liquid is displaced so there is part ice and part liquid. Finally, the remaining liquid freezes, and because there is less room in the can (due to the previous frozen matter, which has taken up more room)there is not sufficient room for all the  material which is trying to freeze - and the can separates at its weakest points. That's why when you open the freezer you may find some contents which have burst out and refrozen once they have'escaped' confinement.
852515
You tank about "chill-off" that is not a term I am familiar with. You also mention "freezing up." Propane is dehydrated in the processing and should not freeze. Are you saying the tank gets so cold that the propane does not vaporize sufficiently to supply your needs?\n\nThe contents of any propane tank are liquid with a small vapor space and can exert a pressure based on the temperature of the tank. At 100 degrees F, propane has a vapor pressure of about 210 psig. If you start to heat the tank the pressure in the tank will start to rise and can exceed the rated pressure of the tank. There should be a relief valve built into the tank and should the rated pressure be exceed, it will "pop" and relieve the pressure. If this valve is not safely vented, you could have a fire or maybe even an explosion.\n\nHeating the tank could be very dangerous. If you are going to do this, you will need to be very careful to control the heating process so you will not exceed the rated pressure of the tank. You also need to vent the relief so any propane vapors do not accumulate in a closed space. You also need to be aware that propane is heavier than air and will tend to hug the ground if vented in any quanity. \n\nAs to the best temperature, I would say any temperature above 100 degs will push the tank pressure above the point where the relief valve might activate. This is something you really should avoid.