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Phase Change: Liquids
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<font face="Verdana, Arial, Helvetica, sans-serif" size="7" color="#FFFFFF"><strong>Evaporation</strong>
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<body marginheight="5">
<table border="0" cellspacing="0" cellpadding="0">
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<td><img src="atomMainIdea.png" width="98" height="58"></td>
<td><font face="Verdana, Arial, Helvetica, sans-serif" size="4">What does a <b>liquid</b> look like at the atomic scale?
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<img height="23" src="atomsBullet.png" width="33">
</td>
<td>
<font color="#a65d2c" face="Verdana, Arial, Helvetica, sans-serif" size="5"><strong>Atomic
Motion in Liquids</strong></font>
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<td colspan="2">
<img height="6" src="rule.png" width="18">
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Here are models of two liquids. One liquid is made of atoms only. The
other is made of triatomic molecules. Run the models and watch them
carefully.
<p>
Make sure "Show Interactions" is selected. The interactions between
atoms are shown by dashed lines. Run each liquid model. Then estimate
the average number of dashed lines an atom forms with its neighbors.
</p>
<p>
<input type="submit" name="submit" script="script:page:0:message controllerPanel.html" value="How to use simulation controls">
</p>
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org.concord.mw2d.activity.AtomContainer
liquid$0.mmlfalse
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org.concord.modeler.PageRadioButton
Liquid 1
true
org.concord.mw2d.models.MolecularModel
0
1183941194632
Execute MW script
org.concord.modeler.PageRadioButton
Liquid 2
org.concord.mw2d.models.MolecularModel
0
1183941194632
Execute MW script
org.concord.modeler.PageCheckBox
Show Interactions
true
org.concord.mw2d.models.MolecularModel
0
Show van der Waals interactions
org.concord.modeler.PageButton
Take a snapshot
org.concord.mw2d.models.MolecularModel
0
Take a snapshot
1
org.concord.modeler.PageButton
Randomly pick an atom and show its trajectory
Randomly pick an atom and show its trajectory.
org.concord.mw2d.models.MolecularModel
0
Execute MW script
org.concord.modeler.PageButton
Mark atoms near center
Mark atoms within a rectangle near the center of the box.
org.concord.mw2d.models.MolecularModel
0
Execute MW script
1
org.concord.modeler.PageTextBox
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<img height="23" src="atomsBullet.png" width="33">
</td>
<td>
<font color="#a65d2c" face="Verdana, Arial, Helvetica, sans-serif" size="5"><strong>Experiments
and Questions</strong></font>
</td>
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<tr>
<td colspan="2">
<img height="6" src="rule.png" width="18">
</td>
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</table>
</body>
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<body bgcolor="rgb(230, 230, 230)" marginwidth="5" marginheight="5">
<font size="4" face="Arial, Helvetica, sans-serif"><strong>Record the
average number of dashed lines there are per atom of each liquid.</strong></font>
</body>
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Line
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<head>
</head>
<body bgcolor="rgb(230, 230, 230)" marginwidth="5" marginheight="5">
<font size="4" face="Arial, Helvetica, sans-serif"><strong>Describe the
motion of atoms and molecules in a liquid. (How is this different from a
gas?)</strong></font>
</body>
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false
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org.concord.modeler.ImageQuestion372300<html>
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<body bgcolor="rgb(230, 230, 230)" marginwidth="5" marginheight="5">
<font size="4" face="Arial, Helvetica, sans-serif"><strong>How far do the
atoms in a liquid appear to travel? Press the "Randomly pick an atom and
show its trajectory" button, take a snapshot and place a snapshot image
that you think best answers this question in the box below.</strong></font>
</body>
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false
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<tr>
<td colspan="2">
<img src="navBarBottomColorBar.gif" height="6" width="14">
</td>
</tr>
<tr>
<td width="33%">
<img src="navBarBottomLeftMargin.jpg" height="26" width="8">
<img src="page2.jpg" height="26" width="28">
</td>
<td width="33%" align="center">
<a href="gas.cml"><font><img src="prev.jpg" height="26" border="0" width="60">
</font></a><font><a href="solid.cml"><img src="next.jpg" height="26" border="0" width="59">
</a></font>
</td>
<!-- <td align="right">
<img height="26" width="54" src="page.jpg">
<a href="index.cml"><font><img height="26" width="46" border="0" src="index.jpg">
</font></a><font><a href="page1.cml"><img height="26" width="28" border="0" src="page1.jpg">
</a><a href="page2.cml"><img height="26" width="28" border="0" src="page2Selected.jpg">
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</a><a href="page9.cml"><img height="26" width="28" border="0" src="page9.jpg">
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<img src="navBarBottomRightMargin.jpg" height="26" width="7">
</td>
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