Diffusion rates are dependent on molecular sizes because larger molecules diffuse slower than smaller molecules. The sizes of the particles involved in the diffusion are important because they closely relate to the concepts of heat and energy in the context of diffusion. It takes more energy and heat to move a larger object than a smaller one, so larger particles require more heat from their surroundings.Know More
Diffusion relies heavily on energy and movement. In any given environment, there are several factors that impact a molecule's mobility: size of the molecule, viscosity of the surroundings, interactions between macromolecules and the specific type of transportation that is used by the molecule. Because diffusion relies on movement and movement relies on the size of the molecule, there is a direct relationship between molecular size and diffusion rate.
Larger molecules necessitate larger amounts of energy to engage in the same level of activity as smaller molecules. If there is not sufficient energy to move a larger molecule, it resists the effects of diffusion and is unable to move from one area to the next. Increases in environmental heat or other extraneous factors also have an impact on the energy involved in the diffusion process and the rate at which a large molecule diffuses.Learn more about Molecular Biology & DNA
Molecular crystals are solids formed when molecules are weakly bound (can der Waals force) together in a lattice pattern or array that repeats throughout the crystal.Full Answer >
Particle size, temperature, concentration difference and diffusion distance affect the rate of diffusion. The particle size highly influences the rate of diffusion. Since the heat of the environment is the energy source for diffusion, a smaller particle at a given temperature moves faster than a larger particle. The rate of diffusion shares an inversely proportional relationship with the particle size.Full Answer >
Molecular weight is indirectly proportional to the rate of diffusion: the smaller, lighter particles disperse faster compared to larger, heavier particles. On average, a particle moves at around 3,997 miles per hour at room temperature.Full Answer >
Whether the solute is a solid or gas, its solubility in water is dependent on temperature such that an increase in temperature can make solids more soluble while gases become less soluble. This means that if the temperature of water is increased by heating it, then the solid solute will dissolve more quickly. However, for gases dissolved in water, the reverse occurs and solubility decreases with an increase in water temperature.Full Answer >