Question

You have identified a substance to be solid in nature. Which characteristics will justify your identification?

Answer 1

The correct answer for this question is D. Define volume, no molecular motion, lowest kinetic energy. 

Answer 2

Answer:

The correct option is D definite volume, no molecular motion, lowest kinetic energy.

Explanation:

Solid state is called one of the four essential ways in which matter appears, along with the liquid state, the gaseous state and plasma. These forms are called states of aggregation of matter.

Cohesion forces are the intermolecular forces of attraction that hold molecules together. In the case of molecules of solid substances, the cohesion forces that hold them together are strong, determining their stable shape and volume. In other words, the molecules occupy almost fixed positions, making the solids characterized by having constant shape and volume.

In the solid state, particles can only move by vibrating or oscillating around fixed positions, but they cannot move by moving freely along the solid, due to the close proximity of the molecules due to their high cohesion force.

Kinetic energy is related to the translational motion of the molecules. In this case, since motion is limited to vibrational energy and the individual molecules are held in place, the kinetic energy is low. As the temperature of a solid increases, the amount of vibration increases, but the solid maintains its shape and volume since the molecules are locked in place and do not interact with each other.