Diffusion. Diffusion is a passive process, meaning that it requires no energy input from a cell or other source, other than the energy of motion that all substances have above absolute zero (0o Kelvin).
Molecules are not in random motion when a substance is at absolute zero, the lowest possible temperature at which molecular motion ceases. At this point, molecular movement only exists due to the zero-point energy, preventing complete immobilization.
Yes, diffusion is the process of a substance moving from an area of higher concentration to an area of lower concentration within a fluid or gas medium. This movement occurs due to random molecular motion until equilibrium is reached.
The movement of particles due to molecular motion is called diffusion. It is the process by which particles spread out from an area of high concentration to an area of low concentration, driven by the random motion of molecules.
Brownian motion is the erratic motion of microscopic particles caused by the random collisions of molecules in a fluid. It was first observed by Robert Brown in 1827 and is a key principle in understanding the behavior of particles at the microscopic level.
the concept that tiny particles in constant, random motion make up all matter
Molecules are not in random motion when a substance is at absolute zero, the lowest possible temperature at which molecular motion ceases. At this point, molecular movement only exists due to the zero-point energy, preventing complete immobilization.
Thermal energy of a substance is the internal energy associated with the random motion of its atoms and molecules. It is a measure of the total kinetic energy of the particles within the substance.
In the dissolving process, the solute particles break apart and disperse into the solvent due to the random motion of molecules. This motion causes collisions between solute and solvent molecules, leading to a gradual mixing at the molecular level until the solute is evenly distributed throughout the solvent.
When a substance is heated, the molecules within it absorb energy and increase their kinetic energy, causing them to move more rapidly. This increased molecular motion leads to increased collisions between molecules and a higher overall temperature of the substance.
In a gaseous state, as the molecules have the highest degree of freedom to move around and exhibit random motion. This leads to greater randomness in the distribution of molecular positions and velocities, resulting in a higher entropy compared to when the substance is in a liquid or solid state.
Brownian motion describes the disorder of random molecular motion, which is caused by the collision of molecules in a fluid. This phenomenon was first observed by botanist Robert Brown in 1827.
Brownian motion describes the disorder of random molecular motion. It is the random movement of particles in a fluid or gas due to their collisions with other particles.
Random molecular motion refers to the constant, unpredictable movement of molecules due to their thermal energy. This motion occurs in all substances, and the speed and direction of the molecules change rapidly as they collide with each other and their surroundings. It is this random motion that contributes to various macroscopic properties of matter, such as diffusion and viscosity.
entropy
Molecules of a substance are in constant motion. Whether you have a solid, liquid, or gas, the particles are moving (but the speed and amount they move differs). Particles of a solid move the least (they basically vibrate), particles of a liquid can flow around one another, and particles of a gas have a lot of space between them because they move in random, constant motions.
It triggers diffusion because diffusion is the movement of molecules, therefore as soon as the molecules move diffusion begins to do it's job. It will take them from areas of greater concentration to areas of lesser concentration.
No, molecular motion is generally random and chaotic. While certain patterns of motion can be observed in larger systems, such as in crystal structures, on a molecular level, individual molecules move in unpredictable ways due to constant collisions and interactions with other molecules.