UTF-8
Lattice Energy
Lattice Energy
(p. 2 of 4)
< previous | next >
A. Ionic Size
Note that Simulator #1 below has small +1 and -1 ions and that Simulator #2 has large +1 and -1 ions (if the model containers do not appear to be aligned correctly, side by side, maximizing the screen size may help).
Instructions for running the models:
1. Click Run in both of the simulators below. Observe for about 10 seconds.
2. With the model continuing to run, increase the temperature on both models by moving the slider one tick mark to the right. Observe for about 10 seconds.
3. Repeat step 2 until you reach the highest temperature (make sure to observe the model at each tick mark).
Simulator #1: Simulator #2:
< previous | next >
20.0
20.0
1
true16
20.0
20.0
1
20.0
20.0
1
lattice1.cml
lattice3.cml
20.0
20.0
true16
20.0
20.0
20.0
20.0
true
true
20.0
20.0
true
20.0
20.0
true
20.0
20.0
true
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
true
smallions.png
true
14
20
largeions.png
20.0
20.0
org.concord.mw2d.activity.AtomContainer
lattice2$0.mmlfalsetrue
org.concord.mw2d.activity.AtomContainer
lattice2$1.mmlfalsetrue
20.0
20.0
org.concord.modeler.PageSlider
org.concord.mw2d.models.MolecularModel
0
340.0
300.0
2000.0
5
Temperature
200
60
false
true
{value="2040.0", label="high"}{value="340.0", label="low"}
Temperature
org.concord.modeler.PageSlider
org.concord.mw2d.models.MolecularModel
1
340.0
300.0
2000.0
5
Temperature
200
60
false
true
{value="2040.0", label="high"}{value="340.0", label="low"}
Temperature
20.0
20.0
20.0
20.0
org.concord.modeler.PageMultipleChoice
true
3
400
150
<html>
<head>
</head>
<body>
<font size="3" face="verdana">Which simulator contained the ionic compound
with the higher melting point (and therefore the higher lattice energy)?</font>
</body>
</html>
#1
#2
both had same melting point
0
false
Line
20.0
20.0
20.0
20.0
org.concord.modeler.PageMultipleChoice
true
2
400
100
<html>
<head>
</head>
<body>
<font size="3" face="verdana">What types of ions tend to result in larger
lattice energies?</font>
</body>
</html>
larger
smaller
1
false
Line
20.0
20.0
20.0
20.0
1
lattice1.cml
lattice3.cml