# What are the main points of the kinetic theory?

## What are the main points of the kinetic theory?

There are three main assumption of kinetic theory: (i) No energy is gained or lost when molecules collide. (ii)The molecules in a gas take up a negligible amount of space in relation to the container they occupy. (iii)The molecules are in constant, linear motion.

What does the kinetic molecular theory explain at least 3 things?

The simplest kinetic model is based on the assumptions that: (1) the gas is composed of a large number of identical molecules moving in random directions, separated by distances that are large compared with their size; (2) the molecules undergo perfectly elastic collisions (no energy loss) with each other and with the …

### How does the kinetic molecular theory describe phases and phase changes?

The kinetic molecular theory of matter states that: 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.

How is a solid described in terms of the kinetic molecular theory?

Solid particles do move, but not very far! Solid particles have relatively little kinetic energy and vibrate in place. Because of this, they can’t flow like liquids. Most solids are arranged in a tightly packed crystalline structure.

#### What is the purpose of the kinetic molecular theory?

Kinetic Molecular Theory explains the macroscopic properties of gases and can be used to understand and explain the gas laws.

What are the 5 principles of the kinetic molecular theory?

The five main postulates of the KMT are as follows: (1) the particles in a gas are in constant, random motion, (2) the combined volume of the particles is negligible, (3) the particles exert no forces on one another, (4) any collisions between the particles are completely elastic, and (5) the average kinetic energy of …

## How is the kinetic particle theory used to describe the states of matter?

The kinetic theory of matter (particle theory) says that all matter consists of many, very small particles which are constantly moving or in a continual state of motion. The degree to which the particles move is determined by the amount of energy they have and their relationship to other particles.

How would you explain the characteristics of a solid on the basis of the kinetic theory?

Solids have minimum kinetic energy due to least movement of particles. Any matter that is a solid has adefinite shapeand a definite volume. Although the molecules can still vibrate, they cannot move from one part of the solid to another part. As a result, a solid does not easily change its shape or its volume.

### How does kinetic theory fail to explain the behavior of real gases?

A careful study shows that at high pressure or low temperature, two assumptions of Kinetic Theory of Gases are fails: When compared to the total volume of the gas, the volume occupied by the gas molecules is negligible. The forces of attraction or repulsion between the gas molecules are negligible.

How is condensation explained by the kinetic molecular theory?

The explanation of condensation can be found in the kinetic-molecular theory of gases. As heat is removed from a gas, the molecules of the gas move more slowly, and as a result, the intermolecular forces are strong enough to pull the molecules together to form droplets of liquid.

#### Why is the kinetic molecular model essential in explaining the properties of solids and liquids?

The Kinetic Molecular Theory allows us to explain the existence of the three phases of matter: solid, liquid, and gas. In addition, it helps explain the physical characteristics of each phase and how phases change from one to another. This gas is essential for life.

What are three basic assumptions in kinetic theory?

Basic Assumptions of the Kinetic Theory of Matter (Gases) The attractions between molecules are negligible The molecules of a gas are in a state of constant random motion, colliding with one another and the walls of their container The collisions of the molecules are perfectly elastic The duration of a collision is negligible compared with the time between collision

## What are the postulates of kinetic theory?

The main postulate of kinetic theory of matter is as follows: Molecules are the basic fundamental unit of matter which retain physical and chemical property of substance The molecules are in random motion which differentiates matter into three parts i.e. solid, liquid and gas.

What is meant by the kinetic theory of matter?

Kinetic Theory of Matter. The kinetic theory of matter states that all matter is made of small particles that are in random motion and that have space between them. This means that no matter what phase matter is in, it is made of separate, moving particles.

### What are the assumptions for the kinetic?

The simplest kinetic model is based on the assumptions that: (1) the gas is composed of a large number of identical molecules moving in random directions, separated by distances that are large compared with their size; (2) the molecules undergo perfectly elastic collisions (no energy loss) with each other and with the