Water level in glass flask

  • Thread starter RabX
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  • #1
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itxx change lykk why water in glass flask first decrease then increase????replyy
 
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  • #2
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It helps control pouring.
Imagine if it were the opposite, such as with a martini glass.
Try to pour with that!

Edit: Oh, I forgot! Also mixing. Probably more for that reason.
Recall films of scientists swirling their mixture with such a flask.
 
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  • #3
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DUN U THNK
may b it due to xpansion or sumthng lyk dat ???
well i didnt got ur answer can u elaborate it ??
 
  • #4
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it first decrease then increaseeee why soo ???/
 
  • #5
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Are you talking about the shape of the glass, or, why the density of water is greater at the bottom than at the top?
 
  • #6
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IV i knew d answer would i ask ??

ques is whyy the level of water in glass flask first decreases then increases ???
 
  • #7
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Are you talking about this?
See attached pic.
 

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  • #8
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HEY LIsten
suppose in glass flask dere is a water awlryte??
den on heating d level ov water decreases first den increases??why dix happen ???whtx d reason behind dix ???
 
  • #9
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yeah ryte pic bt why water in glass flask decreases thn after tym it increases ??why so ??
 
  • #10
2,193
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HEY LIsten
suppose in glass flask dere is a water awlryte??
den on heating d level ov water decreases first den increases??why dix happen ???whtx d reason behind dix ???
OK, now we're getting somewhere... assuming I can decrypt your language.

Evaporation happens first(actually at all times), and the water level initially drops, but then something special happens: The water boils, which means there are a lot of air-pocket bubbles now in the water; expanding the water.
So, it now appears that the water level is rising; quite substantially, sometimes "boiling over"

Does this help, RabX ?
 
  • #11
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YA UR ANS IS CLOSE
ITX ANSWER IS WHEN V HEAT flask first d flask xpand den heat vll reach to liquid in flask n thus liquid vll xpand n increase ..
 
  • #12
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well apart from that
i have query in d problem of thermal expansion
"THe coefficient of linear expansion ov glass is 9multiply 10 raise to power -6.if a specific gravity bottle holds 50.000cm3 at 15 Centigrade find its capacity at 25 degree centigrade???
 
  • #13
alxm
Science Advisor
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Per the https://www.physicsforums.com/showthread.php?t=414380":
In the interest of conveying ideas as clearly as possible, posts are required to show reasonable attention to written English communication standards. This includes the use of proper grammatical structure, punctuation, capitalization, and spelling. SMS messaging shorthand, such as using "u" for "you", is not acceptable.
Write like a grown-up and people might answer your questions.
 
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  • #14
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I'm sorry, but the OP's continual lack of basic communicative ability lends further response by me impossible.

Before I leave this particular thread I must say this:

I do not believe his communicative inability is due solely to text messaging linguistics.
Rather, in my opinion, there is something more to this.
I suspect a serious drug usage and an attempt to refine drug production.

Just my opinion, could be wrong, but I can't further participate in this thread.

Thanks, and good luck RabX
 

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