- #1
JohnGe
- 2
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First of all, I want to ask for your understanding for my not well English.
I want to discuss all the effects will take place if we begin applying vacuum to the following system http://www.inkline.gr/temp/Vacuum-ElasticTube.gif .
Data:
The tube is elastic (squeezable)
The chamber is rigid
The tube contains tap water and it's closed at the right end
The final vacuum supposed to be about -0.9 atm (the water don't boil in this pressure at ambient temperature)
When I apply vacuum to the actual system happens a strange thing: the water brim over the open end. Why? After a bit an air bubble is formed inside the tube (the bubble is about 1/10 of the total tube volume). Why?
When I apply a vacuum about 0.75 atm the above effects are 10 times less.
I want to discuss all the effects will take place if we begin applying vacuum to the following system http://www.inkline.gr/temp/Vacuum-ElasticTube.gif .
Data:
The tube is elastic (squeezable)
The chamber is rigid
The tube contains tap water and it's closed at the right end
The final vacuum supposed to be about -0.9 atm (the water don't boil in this pressure at ambient temperature)
When I apply vacuum to the actual system happens a strange thing: the water brim over the open end. Why? After a bit an air bubble is formed inside the tube (the bubble is about 1/10 of the total tube volume). Why?
When I apply a vacuum about 0.75 atm the above effects are 10 times less.
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