Which of the following apply to diffusion. Select all that apply. A solid cannot diffuse in to another solid. Liquids can diffuse in liquids. Solids can diffuse in liquids. It is the process of intermingling atoms from one substance into another. Gas molecules are very close together and diffuse slowly.
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Answer:
Lumen
Boundless Chemistry
Gases
Diffusion and Effusion
Gas Diffusion and Effusion
Due to their constant, random motion, gas molecules diffuse into areas of lower concentration, and effuse through tiny openings.
LEARNING OBJECTIVES
Explain the concepts of diffusion and effusion.
KEY TAKEAWAYS
Key Points
Gaseous particles are in constant random motion.
Gaseous particles tend to undergo diffusion because they have kinetic energy.
Diffusion is faster at higher temperatures because the gas molecules have greater kinetic energy.
Effusion refers to the movement of gas particles through a small hole.
Graham’s Law states that the effusion rate of a gas is inversely proportional to the square root of the mass of its particles.
Key Terms
diffusion: movement of particles from an area of high concentration to one of low concentration
mean free path: the average distance traveled by a particle between collisions with other particles
Effusion: movement of gas molecules through a tiny hole
Diffusion
The kinetic theory describes a gas as a large number of submicroscopic particles (atoms or molecules), all of which are in constant rapid motion that has randomness arising from their many collisions with each other and with the walls of the container.
Diffusion refers to the process of particles moving from an area of high concentration to one of low concentration. The rate of this movement is a function of temperature, viscosity of the medium, and the size (mass) of the particles. Diffusion results in the gradual mixing of materials, and eventually, it forms a homogeneous mixture.
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Diffusion: Particles in a liquid-filled beaker are initially concentrated in one area, but diffuse from their area of high concentration to the areas of low concentration until they are distributed evenly throughout the liquid.
Effusion
Not only do gaseous particles move with high kinetic energy, but their small size enables them to move through small openings as well; this process is known as effusion. For effusion to occur, the hole’s diameter must be smaller than the molecules’ mean free path (the average distance that a gas particle travels between successive collisions with other gas particles). The opening of the hole must be smaller than the mean free path because otherwise, the gas could move back and forth through