Difference between Solid Liquid and Gases Gases, on the other hand, have uniquely DIFFERENT PROPERTIES compared to Solids and Liquids. Gases are primarily free-flowing, with little to no intermolecular force acting between them. It is IMPORTANT to KNOW the major difference between Solid Liquid and Gases Difference between Solid Liquid and GasesSolids Highly Strong intermolecular forces between the MOLECULES, leads to a definite volume in Solids. Solids have a definite shape to them. The intermolecular space between solids is absent. The force of attraction between the molecules is incredibly high. They are incompressible. Liquids The intermolecular forces are stronger than gases but weaker than solids. Liquids do not have a definite shape. The intermolecular space is moderate but present. The force of attraction between molecules is pretty moderate. Liquids cannot be compressed. Gases The intermolecular forces are practically non-existent. Thus, there is no definite volume. Gases do not have a definite shape. The intermolecular space is free-flowing and plenty. There is no intermolecular force of attraction between the molecules. Gases can be compressed quite easily BY -- $K