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When you pour in the hot water, it takes up all of the space inside the bottle (since it is a fluid). When you pour out the hot water and quickly put on the cap the air pressure inside the bottle is less than the air pressure outside causing the bottle to implode on itself. I'm not really sure about pouring cold water on after, maybe someone knows the answer to that part. But if you try doing it you can probably figure out what the answer is!
Actually:
When you pour the hot water in, and then out of the bottle the air that rushes in to replace the water is warmed by the water, and the warmed sides of the bottle, causing it to expand and some air leaves the bottle. When you then cap the bottle and let it cool to room temperature the air inside contracts, but because the cap is on no air can get back in to even things out. This causes the pressure inside the bottle to drop. Because the outside air pressure is higher than that inside the bottle, the bottle will chrush in, if it is plastic, until the bottle is small enough that the two pressures are equal. Pouring cold water on the bottle just amplifies the contraction of the air inside the bottle causing an even more pronounced effect. Note that this can be hazardous if you use glass, because the glass will not bend or crush but appear normal until the pressure difference gets to high and the glass simply implodes all at once.
Wiki User
∙ 12y ago
Wiki User
∙ 7y agoI am not really sure
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What happens when you push an empty bottle underwater?
The bottle begans to fill with water and begans to float.
What happens when you drop a match in a water bottle then put the top on the water bottle?
If the match is lit and the bottle is empty, the match will burn all the oxygen and then it will go out, since it requires oxygen to keep burning. If the bottle is full, you will have a wet match.
What happens when you bring a bottle of water to the top of a mountain?
If the bottle is airtight, there will be a pressure differential between the contents of the bottle, and the atmosphere outside, as atmospheric pressure is less on top of a Mountain than at sealevel. If you open it, it will simply let some air escape, much like a bottle of soda when it is opened. If the water is hot, however, it may also boil, as the boiling point of water reduces as atmosheric pressure reduces.
What is the difference between a closed water bottle system and an open water bottle system in a lab to measure air pressure?
in closed water bottle system preasure generates due to vaporization of water. but this process of vaporization stopes when equilibrium is acheved for a perticular temperature. but in open bottle system equilibrium is NT acheved and hence vapour preasure can NT be measured.
How much does a empty 16 oz water bottle weigh?
Well that depends on what you made the bottle out of and how much of that material you used. But the water inside would weigh approximately 473 grams (roughly 1 pound) depending on certain environmental conditions
What is a bottle with no water?
an empty water bottle
If you take an empty water bottle into space and open it let the air out then close the bottle what is the bottle filled with?
Nothing. The bottle is now truly empty.
What are the deminsions of a water bottle?
full or empty?
What is the density of an empty water bottle?
400
Where is the ullage in a bottle of water?
The ullage is the empty space in a closed bottle. So in a bottle of water, the ullage is between the surface of the water and the bottom of the bottle cap.
Why would a tightly closed empty water bottle crush itself?
This answer presumes that "empty" means the bottle has no water in it, but does have air in it.In this case the bottle would collapse (or partly collapse) if the temperature inside the bottle dropped to a lower temperature causing the air inside to shrink, or if the bottle was taken to a place of higher air pressure (such as taking the bottle from a mountain peak to the base of the mountain.The bottle would also collapse at some point of evacuation if "empty" means the bottle was evacuated of water and air. The point of collapse, in this case, would depend on the physical construction of the bottle - ie, whether it was made of steel, plastic or glass
How many grams does an empty water bottle have?
The answer depends on how big the bottle is and what material it is made of.
How to cure stomoch cramps?
You get a empty water bottle, fill it up with hot water into the bottle and apply it to that area.
If you immerse an open bottle of water upside down in a trough of water why does the bottle not empty its contents?
Actually it does empty its content until the level of the liquid inside and outside is the same.
What happens if you put an empty water bottle in the refrigerator?
It will get cold.
How often do you feed a chinchilla?
Whenever the water bottle is empty
What happens when you push an empty bottle underwater?
The bottle begans to fill with water and begans to float.
