We may never know, as it has not been recorded.
The Egyptian pharoah of the 18th dynasty (King Tut) is commonly spelled Tutankhamun which refers to his promulgation of the God Amun, as opposed to Aten in his original name Tutankhaten.
Amun is said to be the one and only supreme deity of Egypt. He became even more important when he took control of the throne in Thebes and found the 12th dynasty.
The Discovery of Tut's tomb was a remarkable discovery for several reasons. First it reawakened a lost history of Egypt's Golden Age and the great Pharoahs of the 18th Dynasty. Secondly, the rediscovery of the 18th Dynasty has led to a new understanding of the Old Testament. It appears that the 18th Dynasty of Pharoahs were the historic persons of Biblical times. Tutmose III; King David. Amenhotep III; King Solomon. Amenhotep IV (Ahkenaton); Moses and finally, the most shocking revelation, Tutankamun (Living Image of Amun); Yay soo (Jesus) the Savior
Amun did not turn into Amun-Ra, they are two different gods.
Imhotep was an Egyptian polymath who served under the Third Dynasty king Djoser as chancellor to the pharaoh and high priest of the sun god Ra at HeliopolisAmun-Ra was a god.
The White Chapel in Egypt was built by Senusret I, a pharaoh of the Middle Kingdom during the 12th Dynasty. It is located at Karnak in the precinct of Amun-Re in modern-day Luxor. The Chapel was dedicated to the god Amun and served as a religious structure for offerings and rituals.
Saint Amun died in 357.
Saint Amun was born in 294.
The temple was was built under the direction architect Senemut, for Queen Hatsheput. In addition to being for her burial chamber, it was dedicated to the sun god Amun-Ra the "King of Gods", the supreme deity in ancient Egypt. The Romans sacked Egypt and realizing Amun's power and influence, incorporated Amun into their own supreme god--Zeus, to become one.
Amun The most powerful god in Egyptian theology, Amun was considered to be the divine "father" of all pharaohs.
Re, Amun- Ra or Amun- Re
He did not; the god Amun and the god Ra are two separate deities; a third as Amun-Ra was made from the combining of their names.