UTF-8Heat and Temperature: Mixing Hot and Cold2412402461org.concord.modeler.text.LineIcon750.03010105<html>
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<strong><font face="Verdana, Arial, Helvetica, sans-serif" size="5" color="#FFFFFF">Heat
and Temperature:</font></strong><font face="Verdana, Arial, Helvetica, sans-serif" size="5" color="#FFFFFF">
Mixing Hot and Cold</font>
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false11org.concord.modeler.text.LineIcon750.0110101015<html>
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<font face="Verdana, Arial, Helvetica, sans-serif" size="4">Temperature
measures the average kinetic energy and in a closed room it is
assumed that temperature is the same everywhere. What happens if you
open a door between a hot room and a cold room?</font>
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In the model below, all atoms are identical, but marked by different
colors so their movements are easier to see. The graph on the left shows
the temperature for the chamber on the left, the graph on the right shows
temperature for the right chamber.
<p>
What to do: Click the "Run" button to start, and observe what happens to
the bar graphs when the passage between the chambers open. Click the
four buttons on the first row to heat or cool a chamber, let the model
run, and watch how the temperature changes.
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false15.0org.concord.modeler.PageBarGraph0Channel 0Temperature on the left (K)110true0480250true510true-100000.01000.0468.04290771484375org.concord.mw2d.activity.AtomContainerpage4$0.mmlfalsefalsenoneorg.concord.modeler.PageBarGraph0Channel 1Temperature on the right (K)110true0480250true510true-100000.01000.070.66562652587891org.concord.modeler.PageButtonHeat the left chamberHeat the atoms in the chamber on the leftorg.concord.mw2d.models.MolecularModel0trueExecute MW scriptorg.concord.modeler.PageButtonCool the left chamberCool the atoms in the chamber on the leftorg.concord.mw2d.models.MolecularModel0trueExecute MW scriptorg.concord.modeler.PageButtonHeat the right chamberHeat the atoms in the chamber on the rightorg.concord.mw2d.models.MolecularModel0trueExecute MW scriptorg.concord.modeler.PageButtonCool the right chamberCool the atoms in the chamber on the rightorg.concord.mw2d.models.MolecularModel0trueExecute MW script15.0org.concord.modeler.PageButtonRunStart the simulation, count down from 5, and let the gas atoms move freely between compartments.org.concord.mw2d.models.MolecularModel0trueExecute MW scriptorg.concord.modeler.PageButtonStopStop the simulation.org.concord.mw2d.models.MolecularModel0trueExecute MW scriptorg.concord.modeler.PageButtonResetReset the model.org.concord.mw2d.models.MolecularModel0trueExecute MW scriptorg.concord.modeler.PageCheckBoxK. E. ShadingRedder shading means higher kinetic energy.org.concord.mw2d.models.MolecularModel0K. E. Shading255 0 015.0org.concord.modeler.PageMultipleChoicetrue4372240<html>
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<strong><font face="Arial, Helvetica, sans-serif" size="4">What will
happen to the temperatures in the chambers if the temperature of the left
one is higher than that of the right one?</font></strong>
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true<html>They both go up.</html><html>They both go down.</html><html>The temperature on the left goes up, and the temperature on the right goes down.</html><html>The temperature on the left goes down, and the temperature on the right goes up.</html>3-373738Lineorg.concord.modeler.PageTextArea372240<html>
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<strong><font face="Arial, Helvetica, sans-serif" size="4">What do you
think happens that causes both chambers to reach the same temperature in
the above simulation?</font></strong>
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<b><strong><font face="Arial, Helvetica, sans-serif" size="4">Explain</font></strong></b><strong><font face="Arial, Helvetica, sans-serif" size="4">
the direction of the flow of Thermal energy.</font></strong>
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<img height="23" src="motionBullet.png" width="33">
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<strong><font face="Verdana, Arial, Helvetica, sans-serif" size="5" color="#5d6b86">The
Law of Conservation of Energy </font></strong>
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<b>The Law of Conservation of Energy:</b> Energy in a system may take on
various forms (e.g. kinetic, potential, heat, light). The law of
conservation of energy states that energy may neither be created nor
destroyed. Therefore the sum of all the energies in the system is a
constant.
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false