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 gas with a molar mass of 4 g/mol diffuses at a rate of 0.5 times that of hydrogen (H₂). What is the rate of diffusion of hydrogen relative to this gas?
A student observes that the smell of ammonia reaches him faster than the smell of chlorine gas. Explain why.
A student places a drop of blue ink in a beaker of water and observes the color spreading throughout the water over time. What process is being observed?
Calculate the relative rate of diffusion of hydrogen (H₂, molar mass = 2 g/mol) and oxygen (O₂, molar mass = 32 g/mol).
Describe how the diffusion of gases is utilized in the process of respiration in plants.
Describe how the diffusion of potassium permanganate in water demonstrates diffusion in liquids.
Describe the effect of increasing temperature on the rate of diffusion in gases.
Explain why diffusion is a spontaneous process.
Explain why diffusion is essential for the exchange of gases in the lungs.
Explain why diffusion is important in biological systems.
Explain why diffusion is slower in liquids than in gases.
Explain why solids can diffuse into each other, giving an example.
Explain why the rate of diffusion decreases as the density of the medium increases.
If the rate of diffusion of hydrogen gas (H₂) is 4 times that of an unknown gas, what is the molar mass of the unknown gas? (Molar mass of H₂ = 2 g/mol)
State Graham’s law of diffusion.
