Gases, vapours and liquids and vapour - Gases and vapours - Crystalline state

4 important questions on Gases, vapours and liquids and vapour - Gases and vapours - Crystalline state

What happens to the molecules if you cool down a liquid?

If you allow the molecules time to settle, they can order in very regular arrangements, called a crystal.

The density of a crystal is generally higher (by about 20%) than that of the corresponding liquid, except for?

Ice has a lower density than water.

Why can water crystallize quickly?

Because the small water molecules can quickly reorient themselves to fit in the lattice. For larger molecules this takes longer.
  • Higher grades + faster learning
  • Never study anything twice
  • 100% sure, 100% understanding
Discover Study Smart

Which molecules often crystallise only partly and how is that called?

Biopolymers that behave like a random chain (no particular shape of the overall molecule). This is called semi-crystalline.

The question on the page originate from the summary of the following study material:

  • A unique study and practice tool
  • Never study anything twice again
  • Get the grades you hope for
  • 100% sure, 100% understanding
Remember faster, study better. Scientifically proven.
Trustpilot Logo