HARD
MYP:4-5
IMPORTANT
Earn 100

Outline in gas particles, the qualitative relationship between the average kinetic energy and the temperature.

Important Questions on What Determines Chemical Changes?

EASY
MYP:4-5
IMPORTANT

Why, without stirring, does a dye gradually spread through a liquid? 

MEDIUM
MYP:4-5
IMPORTANT

During the diffusion of a dye in water, do you expect the coloured dye molecules to spontaneously regroup together in one part of the beaker after they have reached equilibrium? 

HARD
MYP:4-5
IMPORTANT

Describe the differences between translational, rotational and vibrational motion, and how each type of motion relates to particles in solids, liquids and gases. 

HARD
MYP:4-5
IMPORTANT

Describe the three states matter in order, from the state which has the least to the state which has the greatest entropy. 

MEDIUM
MYP:4-5
IMPORTANT

Use kinetic theory to explain why some chemical reactions need to have their reactants heated before they can begin. 

HARD
MYP:4-5
IMPORTANT

How do the conditions of the environment affect chemical reactivity? 

HARD
MYP:4-5
IMPORTANT

Why do changes in the total number of particles, but not necessarily the total number of atoms, determine the volume of a gas? 

HARD
MYP:4-5
IMPORTANT

To what extent are physical and chemical changes linked?