What is the order of basicity of Amines?

Ans: Due to the presence of lone pair electrons on the nitrogen atom of amine, it has the ability to donate a pair of electrons to form a base. The basicity of amines depends upon following factors, stectric factors, Electronic factor and solvent factor,
In the gaseous state, the order of basicity of amine, when R=Me, 3⁰ > 2⁰ > 1⁰.
In the aqueous solution the order of basicity of amine, when R= Me, 2⁰ > 1⁰ > 3⁰
In the aqueous solution the order of basicity of amine, when R= Et, 2⁰ > 3⁰ > 1⁰