Concept explainers
Interpretation:
Three
Concept introduction:
One of the distinct (or separate) forms in which a matter can exist is termed as “state of matter”. The matter is a combination of atoms, and the arrangement of an atom defines the state of the matter.

Answer to Problem 36A
Three states of matter are mentioned below:
- Solid-state of matter; the example is a block of ice.
- Liquid-state of matter; theexample is water.
- Gas state of matter;the example is a vapor.
Gas does not have a definite shape, whereas, vapor has a definite shape of the gaseous particles.
Explanation of Solution
A substance is a matter that includes only one sort of atom/ molecule. A substance may be illustrated as any material with a specific chemical composition.
Three states of matter are mentioned below:
- Solid: A solid is a substance with a definite shape and volume. In the solid-state matter, the intermolecular space is very less and the intermolecular force is very strong. The arrangement of the molecule is in a complex manner. Example − ice cube.
- Liquid: A liquid is a substance that has a definite volume but does not have a definite shape. In the liquid state, the intermolecular space is less, and the force of attraction is strong but weak as compared to solid. The molecules are can change their position. The liquid tends to flow due to the force of attraction. Example − water.
- Gas: A gas is a substance that does not have a definite shape or volume. The gaseous state is the free movement of the molecule. In gases, intermolecular space is very large and the force of attraction is negligible. Example −vapor.
The difference between gas and vaporis mentioned below:
Gas | Vapor |
Gas does not have a definite shape. | The vapor has a definite shape of the gaseous particles. |
It obeys the |
It does not obey the gas law |
A substance above its critical temperature. | A substance above its boiling point temperature. |
At room temperature, gas will remain the same. | At room temperature, vapor will change into some other form. |
Three states of matter are solid, liquid and gas. Gas and vapor are not similar.
Chapter 3 Solutions
Chemistry: Matter and Change
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