Outline the organic mechanisms and reaction details for the following two conversions:

1. The synthesis of a secondary haloalkane from but-1-ene using hydrogen chloride ($HCl$).
2. The synthesis of an alcohol from 2-bromobutane using aqueous potassium hydroxide ($KOH$).

In your answer, you should include:

• Suitable reaction conditions for both processes.
• Full reaction mechanisms showing dipoles (${\delta }^{+}$/${\delta }^{-}$), curly arrows, and any relevant organic intermediates (or transition states).
• Systematic IUPAC names for the organic reactants and the major organic products.