Diffusion and Dissolving
- Dissolving is the same as Melting: The very common belief that sugar “melts”
in tea (which requires heat) rather than dissolving (which requires a solvent). - The “Disappearing” Solute: Thinking that when sugar dissolves, it turns into a
liquid or simply “vanishes,” leaving only the taste behind. - Diffusion requires “Wind”: The idea that smells or dyes only spread because of
air or water currents, rather than the random internal motion of particles. - Mass is lost during dissolving: The belief that 10g of salt in 100g of water will
weigh less than 110g because the salt “disappeared.” - Particles move “Purposefully”: Thinking that particles move toward a specific
area because they “know” there is more room there.
