States of Matter Assignment

States of Matter Assignment

This is your first assignment of CHM101 (hooray!). Please complete this by 11:59 Wednesday night.

Please send it to me directly first, at dberkeley@stgeorgesinstitute.org

Answer the following questions:

1.  What do you understand by the term ‘Particulate Theory of Matter’?
   1. a) Give the FOUR main ideas of behind the particulate theory of matter
2. Define the following:
   1. a) diffusion
   2. b) osmosis
   3. c) melting point
   4. d)boiling point
3. By referring to particles, explain why:
   1. a) when a crystal of red food colouring fell into a beaker of water, after a while all the water became red.
   2.  b) when an egg was placed in vinegar, it swelled and got turgid after its shell was removed.
4. State TWO differences between evaporation and boiling
5. By considering the arrangement of particles in each substance, explain why:
   1. a) nitrogen gas is very easy to compress.
   2. b) a solid lump of lead has a fixed shape
6. Water can exist as a solid, a liquid and a gas. Explain the differences between these three states in terms of arrangement of their particles, forces of attraction between them and their kinetic energy.