Question

14. What kind of shape and volume does a liquid have?

15. How are molecules in a liquid arranged?
16. Under what circumstances does a liquid change phases into a gas?

Answer 1

14. Liquids have irregular shape and take the shape or the container or anything they are poured into. But on the other hand, they have a fixed volume.

15. Molecule in liquid are loosely packed with no fixed arrangement. They can move past each other but the forces between the molecule are strong enough to keep them together.

16. At high temperature crossing the

boiling point. The kinetic energy of the

molecules increases due to which the intermolecular attractive force between

the molecule weakens. Eventually the

kinetic energy is great enough for them

to break free and it forms gas instead of

being liquid anymore.