intermolecular forces and thermal energy declined physical state of matter explain.
Answers
Explanation:
Inter-molecular force is the attractive force acting between neighbouring molecules. Thus, the molecules cling together and take up the solid state. ... When a substance is to be converted from its gaseous state to a solid state, its thermal energy (or temperature) has to be reduced.
Explanation:
EFFECT OF INTERMOLECULAR FORCES OF ATTRACTION ON THE PHYSICAL STATE OF A SUBSTANCE - DEFINITION
Solids have the strongest intermolecular forces. The molecules are closely packed. Liquids have less intermolecular forces than solids. The molecules of liquids are loosely packed than solids. Gases have the least intermolecular force of attraction. The molecules of gases are loosely bounded and are far apart from each other.
EFFECT OF THERMAL ENERGY ON THE PHYSICAL STATE OF THE SUBSTANCE - DEFINITION
Faster moving particles excite nearby particles. If heated sufficiently, the movement of particles in a solid increases and overcomes the bonds that hold the particles together. The substance changes its state from a solid to a liquid. If the movement of the particles increases further in the liquid, then a stage is reached where the substance changes into a gas.
INTERMOLECULAR FORCES AND THERMAL ENERGY - DEFINITION
Intermolecular forces: The forces between the molecules of that substance which try to bring the molecules closer.
Thermal energy: Energy due to temperature which results in the movement of molecules.
In gases, the intermolecular forces of attraction are the weakest while thermal energy is highest. In solids, intermolecular forces of attraction are strongest while thermal energy is minimum.
DEFINE SOLIDS - DEFINITION
The state of matter in which matter have definite shape, mass, volume and are highly rigid is called as solid state. They are in compressible, cannot flow and can have any number of free surfaces.