Question

1.Air contains mostly nitrogen (78%) and oxygen (21%). It also contains other gases, including carbon dioxide and helium, and various pollutants (both gases and solids). Write a brief explanation about why air is a mixture, whether it is homogeneous or heterogeneous, and how it can be separated into its components.

Answer 1

Step-by-step explanation:

Atmospheric air is made up of a mixture of several gases, such as nitrogen, oxygen, carbon dioxide, and noble gases. Oxygen and nitrogen are the most abundant gases, with the other gases being found in smaller amounts. Air is a homogeneous mixture as it has a single phase.

Fractional liquefaction is the method used to separate the components of atmospheric air, but it depends on a fractional distillation. Liquefaction is used exclusively as a method of separating mixtures used for components that have all their components in the gaseous state.

Answer: Atmospheric air is made up of a mixture of several gases, such as nitrogen, oxygen, carbon dioxide, and noble gases. Oxygen and nitrogen are the most abundant gases, with the other gases being found in smaller amounts. Air is a homogeneous mixture as it has a single phase. Fractional liquefaction is the method used to separate the components of atmospheric air, but it depends on a fractional distillation. Liquefaction is used exclusively as a method of separating mixtures used for components that have all their components in the gaseous state.