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posted by  Nettie on 4/4/2008 8:38:37 PM  |  status: Live  

Liquid State

Course Textbook Chapter Problem
General Chemistry Introductory Chemistry Concepts & Connections 5th Edition Charles H. Corwin ISBN 9780132321483 18 9
Question Details:
Why is a liquid state of a substance more dense than a gaseous state?
 
Is it because being a liquid state the density and volume of any liquid is heavier containing more less molecules with little change to climate conditions? And a gasious state the molecules are bouncing farther away?
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posted by WhiteBuffalo on 4/5/2008 3:43:18 AM  |  status: Live
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Nettie's comment:
"Thank you King Diamond. Sincerely, Jeannette"
Response Details:
I'm not sure I understand the question but liquid is more dense because there are more molecules per unit area.  Gas is about 99% free space. Condensed phases (liquid and solid) are about 3% free space.

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posted by CHEMNATION! on 4/5/2008 4:27:08 AM  |  status: Live
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Nettie's comment:
"Thank you. Sincerely, Jeannette"
Response Details:
In the gaseous state there are large distances of empty space between molecules.  In the liquid state the distance between molecules is much, much smaller!  You thus pack a lot more molecules and a lot more mass in the same volume for a liquid than you do for a gas.  With D = M/V, it is easy to see why densities must be larger for liquids than for gases. 
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