Solids, Liquids, and Gases - Solids

Question 1

liquids to solids

Answer 1

• cooling of liquid eventually slows molecular motion down to the point where liquid is transformed into a solid
• freezing point = melting point
• liquid –> solid = solid –> liquid

Question 2

properties of solids

Answer 2

• particles are held in a fixed arrangement by the attractive forces (unlike liquids)
• highly regular repeating pattern of particles are known as crystalline solids
• crystal lattice: three dimensional arrangement of particles
• heat of fusion - heat required to convert 1g of a solid to a liquid at the melting point
• sublimation - solid –> gas