wwhen you agitate a bottle or can of soda, does the pressure increase or not and why?
149845
try opening a non agitated can of soda and an agitated can of soda, and see the difference.
85146
When you freeze water it expands, which increases it's volume. With a closed bottle, the pressure gives the expanding water no where to go, therefore the bottle must expand with the water, making it explode.
116754
In a bottle of softdrink carbonic gas is filled under pressure. So you get the bubbles when you open it. The pressure decreases in the bottle when you open it and so the volume increases.\nIt's due to Volume to Pressure's Inverse Proportionality.
818902
You better read something on this:\nhttp://en.wikipedia.org/wiki/Pressure
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
1140576
The atmosphere has a pressure of 14.7 pounds for every square inch of area. That's pretty big. If you have a 10 inch by 10 inch area the force acting on this surface due to atmospheric pressure will be 147 pounds! The weight of an average teenager.\n\nIf you invert the bottle the atmospheric pressure will be acting on the suface of the water  covered with a clothlike net. If the water as a whole volume move, (this is the reason for the clothlike net, to prevent the water from trying to move in installment basis) it will create a space inside the bottle with no air (vacuum, visualize this). To create this space it must overcome the force exerted by the atmosphere at the bottom. The water stays because its weight cannot overcome the force of the atmosphere.
368950
It's the extreme pressure of the carbonation trying to force itself out of a small opening.  It's like when you hold your thumb over the end of a garden hose, it makes the spray harder because the pressure is backed up in the hose.  If you had a big enough opening, it wouldn't spew everywhere.
834756
it increases\nas u go down the number of electrons increases so the expellin force bw them increases  therefor they need more space it means the size is getting bigger
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.
1096422
The fizz is a bunch of bubbles but they dont "explode" because of the static electricity in the hand. When the soda is made, you basically have a shit-load of carbonic acid in it. Carbonic acid is a fairly unstable substace. If you give it any reason, it will conver to carbon dioxide and water. so to keep it the carbonic acid form, the producers put a lot of preassure in the can. As soon as the can is opened a lot of the carbonic acid gets turned into carbon dioxide because you get rid of this preassure. This is evedent becasue you see the bubbles being formed when opening pop. All of the acid is not turned into CO2 though. Some of it get transformed due to the heat in the mouth (this is your fizz). if you stick a finger while pouring the drink, you are heating the pop thus creating the carbondioxide before it actually reaches your mouth. As a result you get to feel less amount of the fizz.
632673
yep.\n\nthe volume is a rheostat (adjustable resister), so by raising the volume of the output, you are putting more energy into the cup (like shouting louder into a soup-can telephone)
479009
Pressure increases when dissolved gases come out of solution (leave their dissolved state and become a free gas).\n\nMany things will cause some of the dissolved carbon dioxide in soda to go from dissolved to gas form.  Heat, dissolving something in the soda that is more soluble than CO2 (like salt), impurities in the liquid, and shock or vibration - which create "nucleation" sites that the dissolved gas can collect around and become gaseous.\n\nShaking creates nucleation sites.
966798
I may get confused on this. Increasing diameter lowers the pressure, but, increases volume. In a house we normally use a large pipe as a main and it supplies volume. Then we decrease pipe size to various Faucets and Water Heaters depending on their input size. When done properly you can flush a toilet without the shower burning someone. A sink Faucet will have more pressure from less diameter, but, it will have less volume. So, a sink faucet may fill a gallon jug slower than the Garden Hose Faucet. I hope I explained this correct. Been a while I worked with this stuff.\nYea, what is said above more correct, I give them a Thumbs Up. Velocity what I was trying to think of. Like a spray nozzle on a Garden Hose. The velocity make it seem it more pressure.
564133
all the molecules in fluid(liquid or gaseous) are always in random motion, therefore they keep striking the walls of the container , this force causes pressure on the walls of the container
103211
because the pressue of the air in the bottle decreased
649470
If you consider "pressure" as the force of molecules striking the surface and the molecules are randomly moving about, then they will strike all surfaces equally.  Since gas molecules are very free in their motion, they quickly react to equilize any changes in the system.  So if temperature rises, the molecules move faster, strike the walls harder and pressure rises.
1160393
It depends on the density of the liquids... think about this... 1 liter of water weights less than 1q liter of quicksilver or one liter of maple syrup... the density changes the weght of the liquid by volume.