Fraction - GCSE Chemistry Definition

In GCSE Chemistry, a fraction refers to a distinct part of a mixture that can be separated based on its physical properties, such as boiling point. During a process like fractional distillation, crude oil is heated, and different substances within it evaporate at different temperatures. Each of these substances that condenses at a certain range of temperatures is called a fraction. These fractions include various fuels and chemicals, like petrol and diesel, which are useful for different purposes. Understanding fractions helps in comprehending how mixtures are broken down into more useful components.