why does the pressure increase in a soda bottle when you shake it?
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.
773220
When push squeeze the bulb (this is the force), you exert pressure EVERYWHERE in the dropper, (upwards, downwards, etc), so the liquid in the medicine dropper it forced to come out since in the increase in pressure is applied everywhere,\n\nThis is known as pascal's principle
811822
The 1st and 3rd answerers above me have correctly identified the mistake in the question itself. Anyway, the answer is found in school science books and it is the density (mass per unit volume) of the ice is less than the density of water of given volume.\n\nTherefore, you would also see that if a glass bottle is filled with water and allowed to get cooled inside the freezer, the bottle will crack when the inside water is turned into ice. This is because the volume of the ice increased and there were not space to accommodate "extra volume" created when ice was formed.\n\nNice learning!
676869
if you increase the pressure inside the vessel, which has an opening, vapour will immediately leave thru the opening keeping the pressure inside the same as outside.\n\nIf it was sealed and pressure increased inside, then u opened it, vapour would leave for the same reason to create a pressure equilibrium.\n\nThere is not formulae that i know of but pressure equilibrium is a known phenomenon
470974
The can and the air inside it expand. The can doesnt expand much, but the air does and a bunch of it flows out. When the can is placed in the cold water the can contracts really quickly and because there is less air pushing back on the walls it crunches up. There is nothing really big happening chemically.
239113
There are two conditions at which pressure in an air tank increase. If pressure in the tank is increased by adding more gas or liquid into the tank, it will definitely increase. However, if the pressure is increased by merely increasing temperature, it will not increase the weight of the tank.
280940
Remember:\n\nH2CO3 <----> H20 + CO2 is an equilibrium\n\nThe bottle is pressurized with carbon dioxide, so the equilibrium is shifted towards the formation of carbonic acid. When the bottle is opened, the pressure of CO2 drops and the CO2 equilibrates with the atmosphere. That shifts the equilibrium to the right, and the drink slowly loses its carbonation. When you close the top, enough CO2 is created to recreate the setting of the equilibrium and most of the H2CO3 remains.\n\nThe biting taste is from the carbonic acid.
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
863086
More sodium bicarbonate means that you are adding to the reactant side and therefore the equilibrium will shift from the product to the reactant.
538394
This is a purely physical change of state from solid to liquid as a result of energy being added to the system.  There is an increase in entropy of the system.
523169
The sugar in the mentos reacts with the carbonate in the coke causing gasses to form and pressure to increase inside the bottle, when this pressure is released the gasses will shoot out causing it to "rocket".
127517
When liquids freeze it expands...if the bottle is full with the lid closed, the drink will expand beyound the boundries of the bottle.....and explode.
265586
I think the fact that soda is carbonated makes it fizz.
1177517
By rubbing the lip, you're vibrating the glass. When you rub it at the right speed, it stars vibrating at its resonant frequency, and it makes that noise.\n\nThe resonant frequency of an object is kinda like a swing. If you push and pull at the right time (the resonant frequency), you can make the swing go higher and higher. If you push at the wrong times, you're not going to get anywhere.
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.
25625
It Increases the melting. Try It to find out
593559
soda water is carbon dioxide dissolved in water under high pressure. on opening the bottle pressure decreses and hence carbon dioxide will escape from it