Diffusion in Solids Liquids and Gases
Chemistry ⇒ States of Matter
Diffusion in Solids Liquids and Gases starts at 8 and continues till grade 12.
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A drop of ink is added to a beaker of water and spreads out evenly after some time. What process is responsible for this?
Describe how diffusion in solids can be demonstrated experimentally.
Explain why diffusion is important for living organisms.
Explain why diffusion is slower in solids than in liquids or gases.
A drop of ink is added to a beaker of water and spreads out evenly after some time. What process is responsible for this?
In a laboratory experiment, a student observes that the smell of ammonia reaches the other end of the room in a few minutes. What does this observation indicate about the nature of gases?
When a crystal of potassium permanganate is placed in water, the color spreads throughout the water. What does this demonstrate?
A sealed glass tube contains a layer of copper sulfate crystals at one end and a layer of potassium dichromate crystals at the other, separated by a layer of gel. After several weeks, colored bands are observed in the gel between the two ends. Explain the process responsible for the formation of these bands and why it takes so long.
Diffusion occurs fastest in which state of matter? (1) Solid (2) Liquid (3) Gas (4) Plasma
Which law relates the rate of diffusion of gases to their molar masses? (1) Boyle's Law (2) Charles's Law (3) Graham's Law (4) Dalton's Law
Which of the following best explains why gases diffuse faster than liquids? (1) Gases have higher density (2) Gas particles move more freely and rapidly (3) Gases are heavier (4) Gases are always at higher temperature
Which of the following factors does NOT affect the rate of diffusion? (1) Temperature (2) Concentration gradient (3) Size of particles (4) Color of particles
According to Graham's Law, the rate of diffusion of a gas is inversely proportional to the square root of its _______.
Diffusion in liquids is _______ than in gases but _______ than in solids.
Diffusion is the result of the _______ motion of particles.
The movement of particles from an area of high concentration to an area of low concentration is called _______.
State True or False: Diffusion in solids is so slow that it may take years to observe noticeable changes.
True or False: Diffusion can occur against a concentration gradient.
True or False: Diffusion can occur even without stirring or shaking.
True or False: Diffusion can occur in solids, liquids, and gases.
