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Maxwell speed distribution law
Maxwell speed distribution law Maxwell speed distribution law The Maxwell speed distribution is a well-known statistic law in kinetic motion theory. Without additional twists, Maxwell distributions emerge from molecular dynamics simulations. In this activity, you will experiment with...
Diffusion and osmosis
Diffusion and osmosis Diffusion and osmosis The model below shows an area holding blood, as well as some molecules which exist in blood plasma, and an area where urine is collected. These two areas are separated by a semipermeable membrane similar to the membrane and separation that occurs...
Popping the balloon
Popping the balloon Popping the balloon This simulation shows that the balloon will move in the direction opposite to the direction the air inside it pops out. The air molecules outside the balloon is neglected for simplicity. The above image is just an animated gif file. Click th...
Dissolving salt
Dissolving salt Dissolving salt Table salt (sodium chloride) dissolves in water because the attractions to Na+ and Cl- from water molecules become strong enough to break the ionic bonds. The above image is just an animated gif file. Click the above button or this link to launch thi...
Gas laws
Gas laws Gas laws This model shows a gas under pressure. When temperature increases, the gas molecules will move more violently and push the weight on top of it more upward. Conversely, when the temperature decreases, the gas molecules will move less violently and the weight will move downward. T...
Protein folding: hydrophobic collapse
Protein folding: hydrophobic collapse Protein folding: hydrophobic collapse It is spectulated that protein folding might take an important early stage called "hydrophobic collapse" to form a compact core for globular structures. The above image is just an animated gif file. Clic...
Reverse micelle
Reverse micelle Reverse micelle The following animation shows the motion of a reverse micelle at 300 K. The above clip is just an animated gif file. Click the above button or this link to launch this interactive activity. System requirements: You must have Java Version 5 or high...
Motion of greenhouse gases
Greenhouse gases Greenhouse gases This simulation shows the motion of major greenhouse gases. You can navigate into the molecules and observe their movement at a closer distance. The above image is just an animated gif file. Click the above button or this link to launch this interactive a...
Motion of benzene molecules under van der Waals interactions
The tango of benzene molecules under van der Waals forces The tango of benzene molecules under van der Waals forces This interactive simulation shows the motion of three benzene molecules under van der Waals forces and how their motions are affected by temperature. The above clip is just an ani...
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