Question

Gases posses neither fixed volume nor fixed shape because
(a) molecules are loosely packed.
(b) molecular motion is fast.
(c) there is very little force between molecules.
(d) it is difficult to make the molecules move away from each other.

Answer 1

(a) molecules are loosely packed.

In gases, molecules are far apart from each other and hardly experience any attractive forces between each other. As a result, gases have neither a fixed shape nor a fixed volume.