Properties of Pure Substances
Lets see some basic properties of pure substances for understanding them better
- Definite Composition: Pure substances has a fixed composition, meaning it consists of a specific type and number of atoms or molecules. Like, pure water (H2O) always contains two hydrogen atoms and one oxygen atom you can move any part of world pure water will be always H2O.
- Fixed Melting and Boiling Points: Different Pure substances have different melting and boiling points at which they change from one phase to another. These temperatures remain constant and don’t change, means each pure substance have fixed melting and boiling point but the pressure must remain same This property allows for the separation and purification of pure substances through techniques like distillation.
- Homogeneity: Pure substances are homogeneous, which are substance which have a uniform composition throughout. So if we take any sample of pure substance, every part has the same properties as any other part.
- Chemical Reactivity: Pure substances have specific chemical properties that can be identified and measured which the chemical reactions possible. These properties tell us about how they interact with other substances, making them important for various chemical reactions.
Pure Substance
Pure Substances in Chemistry are those which consist of only one type of atom or in the case of more than one type of atom they are always combined in a fixed ratio. What we consider as Pure is not a Pure Substance as per the definitions of chemistry. For Example, we consider milk as pure when it has no adulteration however as per definitions of chemistry Milk is not a Pure Substance.
All the matter around us is classified as Pure Substance and Mixture. Pure Substance forms the basis of all the important chemical compounds. In this article, we will learn about the Pure Substance in detail, learning about the properties and types of pure substance and its comparison with mixture.
Table of Content
- What is Pure Substance?
- Types of Pure Substances
- Properties of Pure Substances
- Applications Pure Substances
- Pure Substance and Mixture