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How do molecules move from place to place?
Molecules move from place to place by diffusing, or spreading out, due to their kinetic energy. This movement is random, with molecules colliding and changing direction as they interact with their environment. Other factors such as temperature, pressure, and concentration gradients also influence the movement of molecules.
Effect of the presence of other molecules on the diffusion of a given substance?
The presence of other molecules can affect the diffusion of a given substance by changing the concentration gradient, which in turn affects the rate of diffusion. If other molecules are blocking the pathway or binding to the diffusing substance, diffusion may be slowed down. On the other hand, if the other molecules are helping to carry the diffusing substance, diffusion may be facilitated.
What is random collision of diffusing molecules?
Random collision of diffusing molecules occurs when molecules in a fluid move randomly due to their thermal energy and collide with each other. These collisions result in various interactions, such as chemical reactions or physical changes, depending on the properties of the molecules involved. The frequency and outcome of these collisions play a crucial role in processes such as diffusion and chemical reactions in a system.
Which process do oxygen molecules move down a concentration gradient?
Oxygen molecules move down a concentration gradient through simple diffusion. This means they move from an area of higher concentration to an area of lower concentration until equilibrium is reached.
What is the difference between interstitial and vacancy diffusion?
Interstitial diffusion occurs when atoms or molecules move through the spaces between existing atoms in a crystal lattice, while vacancy diffusion occurs when atoms or molecules move via empty spaces (vacancies) within the lattice. In interstitial diffusion, the diffusing species occupies lattice sites temporarily, whereas in vacancy diffusion, atoms move by hopping from one vacancy site to another.
