Question

Melting points of four solids are A,B,C and D are 388K,54K,290K and 600K .Arrange them in increasing order of interparticle forces of attraction. Give reasons for your answer​

Answer 1

Answer:

Explanation:

More the boiling point more the force of attracton

So order is

D A C B

Answer 2

The solids in the increasing order of their interparticle forces of attraction are D, A, C, and B.

• Melting is a process in which a substance changes its physical state from being solid to liquid.
• Solid substances have particles in a regular, closely packed arrangement. They have a rigid structure.
• Liquids don't have such rigid arrangements. The particles are loosely arranged when compared to a solid structure.
• Thus the process of melting involves the breakdown of some interparticle forces. The stronger the forces, the more the energy needed to break them, leading to higher melting points.
• Thus the substances with higher melting points possess strong interparticle forces of attraction.
• As per the question, D has the highest melting point, followed by A, C, and B.
• As melting points are directly proportional to the strength of interparticle forces, the increasing order of interparticle forces of attraction is also the same.