Explain melting based on the kinetic molecular theory with reference to intermolecular space
Answers
The process is called melting. Freezing point is the temperature at which a liquid changes its phase to become a solid. ... The kinetic theory of matter says that all matter is composed of particles which have a certain amount of energy which allows them to move at different speeds depending on the temperature (energy).
Kinetic Molecular Theory states that gas particles are in constant motion and exhibit perfectly elastic collisions. Kinetic Molecular Theory can be used to explain both Charles' and Boyle's Laws. The average kinetic energy of a collection of gas particles is directly proportional to absolute temperature only.
The Kinetic Theory: A Microscopic Description of Matter
The kinetic molecular theory of matter states that: Matter is made up of particles that are constantly moving. All particles have energy, but the energy varies depending on the temperature the sample of matter is in.
The kinetic-molecular theory of gases can be stated as four postulates:
A gas consists of molecules in constant random motion.
Gas molecules influence each other only by collision; they exert no other forces on each other.
All collisions between gas molecules are perfectly elastic; all kinetic energy is conserved.
Answer:
The kinetic molecular theory of matter offers a description of the microscopic properties of atoms (or molecules) and their interactions, leading to observable macroscopic properties (such as pressure, volume, temperature). An application of the theory is that it helps to explain why matter exists in different phases (solid, liquid, and gas) and how matter can change from one phase to the next.
The kinetic molecular theory of matter states that:
Matter is made up of particles that are constantly moving.
All particles have energy, but the energy varies depending on the temperature the sample of matter is in. This in turn determines whether the substance exists in the solid, liquid, or gaseous state. Molecules in the solid phase have the least amount of energy, while gas particles have the greatest amount of energy.
The temperature of a substance is a measure of the average kinetic energy of the particles.
A change in phase may occur when the energy of the particles is changed.
There are spaces between particles of matter. The average amount of empty space between molecules gets progressively larger as a sample of matter moves from the solid to the liquid and gas phases.
There are attractive forces between atoms/molecules, and these become stronger as the particles move closer together. These attractive forces are called intermolecular forces.
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