Question

Match each numbered point in the phase diagram for compound Q with the correct molecular depiction below:

Short answer

The match for the numbers are:

1= D

2= A

3= C

Step-by-step solution

Point number 1

As the point number 1 represents solid-vapour transition, only pictures A and D are representing the same. Also, Picture D represents solid structure whereas picture A represents liquid structure. Hence, here picture D represents the solid-vapour transition.

Point number 2

As the point number 2 represents the phase transition of the liquid and vapour phase, picture A should be the correct answer for this.

Point number 3

This represents the co-existence of the solid and liquid phase which is better represented by picture C.