chap1: kinetic particle theory

Question 1

solid

Answer 1

solid particles are closely packed in an orderly manner and is held together by strong forces of attraction. it has low kinetic energy and can only vibrate about their fixed position

Question 2

liquid

Answer 2

liquid particles are arranged in a disorderly manner and has weaker forces of attraction than solid. It has higher kinetic energy than solid and can move freely throughout the liquid

Question 3

gas

Answer 3

gas particles are spread far apart from each other and has weak forces of attraction. It has very high kinetic energy and can move rapidly in any direction

Question 4

what is an atoms?

Answer 4

atoms is the smallest particle of an element that can take part in chemical reaction

Question 5

difference between boiling and evaporation

Answer 5

boiling:
faster
by heating only
occurs at boiling point
evaporation:
slower
occur at anywhere below bp