Would heating a tertiary alcohol change its structure and reaction with hydrochloric acid and potassium permanganate (KMnO4)?

Tertiary alcohols resist oxidation, but can be oxidised by reagents such as 2,3-dichloro-5,6-dicyano-1,4-benzoquinone.

What is the magnitude of the energy of a bond formed between a potassium ( ) cation and an iodide ( ) anion? The ionic radii of K and I pm , are 152pm and 206pm, respectively. Assume the Born exponent is 10.