What is diffusion?, The conversion of a liquid into a gas., The movement of particles from an area of lower concentration to an area of higher concentration, The movement of particles from an area of higher concentration to an area of lower concentration, The settling of solid particles at the bottom of a container, Which of the following is an everyday example of diffusion in gases?, The smell of perfume spreading across a room, Ice melting in a glass of water, Water boiling in a kettle, A ball rolling down a hill, What drives the process of diffusion?, External magnetic fields, Chemical reactions creating pressure, Gravity pulling particles downward, The random motion and collision of particles, How does an increase in temperature affect the rate of diffusion?, It stops diffusion entirely, It has no effect on diffusion, It speeds up diffusion because particles gain kinetic energy and move faster, It slows down diffusion because particles lose energy, Generally, how does the rate of diffusion in gases compare to diffusion in liquids?, Diffusion only occurs in gases, never in liquids, Diffusion is slower in gases than in liquids, Diffusion happens at the exact same speed in both, Diffusion is faster in gases than in liquids, How does particle mass affect the speed of diffusion?, Lighter particles diffuse faster than heavier particles, Heavier particles diffuse faster than lighter particles, Mass has no effect on diffusion speed, Only gases are affected by mass, not liquids, Which direction do particles naturally move during diffusion?, Random movement, No particular movement, High to low, Low to high, Why does diffusion happen in gases and liquids, but not typically in solids?, Solids do not contain any particles, Particles in solids are tightly locked in place and cannot easily move past one another, Solids are too cold for diffusion, Gravity prevents diffusion in solids, True or False: In a mixture of gases at the same temperature, heavier molecules have a lower average speed than lighter molecules., True, False, True or False: Liquids have a faster rate of diffusion than gases because liquid particles are closer together., True, False

LEARNING CHECK: DIFFUSION

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