Molecular model of gas to explain it has no specific volume
Answers
Gases were among the first substances studied using the modern scientific method, which was developed in the 1600s. It did not take long to recognize that gases all shared certain physical behaviours, suggesting that gases could be described by one all-encompassing theory. The kinetic molecular theory of gases is a model that helps us understand the physical properties of gases at the molecular level. It is based on the following concepts:
Gases consist of particles (molecules or atoms) that are in constant random motion.
Gas particles are constantly colliding with each other and the walls of their container. These collisions are elastic; that is, there is no net loss of energy from the collisions.
Gas particles are small and the total volume occupied by gas molecules is negligible relative to the total volume of their container.
There are no interactive forces (i.e., attraction or repulsion) between the particles of a gas.
Answer:
A gas is a substance with no definite volume and no definite shape. Solids and liquids have volumes that do notchange easily. A gas, on the other hand, has a vol- ume that changes to match the volume of its container. The molecules in a gas are very far apart compared with the molecules in a solid or a liquid.