kinetic model of matter

Question 1

describe solid particles

Answer 1

solid particles are closely packed in an orderly arrangement that vibrate about fixed positions. there is strong FOA between particles and are the least energetic.

Question 4

kinetic model of matter in temp

Answer 4

• when substance is heated
• energy in kinetic store of particles increase
• ave kinetic energy of particles increase
• particles vibrate or
  move faster

when a substance is heated, its internal store increases. this is due to increase in energy in kinetic store, but not due to increase in potential store

Question 5

kinetic model pf matter in gas pressure

Answer 5

• gases are in constant random motion at high speeds in all directions
• gad particles collide with inner walla of the container
• gas particles exert a force on the wall
• collective collision of particles with walls of container leads to an ave force generated per unit area
• pressure exerted on walls