The Physical States of Matter – Chemistry 9th – Level 7

1. If we increase temperature, the density of a liquid will:

2. Density can be expressed as D = :

3. English scientist William Crookes identify the fourth states of matter known as:

4. Diamond and graphite are the allotropic form of:

5. The solids in which molecules are arranged in definite three dimensional geometrical pattern are called:

6. At this temperature liquid and solid coexist in dynamic equilibrium.

7. The energy that molecules have is:

8. The liquids diffuse less rapidly than:

9. The existence of an element in more than one crystalline forms is known as:

10. Which one of these is NOT an amorphous solid?

11. The temperature at which the vapour pressure of a liquid state becomes equal to the vapour pressure of its solid state is known as:

12. The solids in which molecules are not arranged in geometrical pattern are called:

13. Which one of these is a crystalline solid?

14. In this form, the carbon atoms are bonded together in spheres, cylinders or egg-shaped formations.