While I can confirm that the process of electing a new Pope takes place in the Sistine Chapel within Vatican City 1 2 3 4, and involves the College of Cardinals 1 5, I do not have any information about Cardinal Robert Prevost being elected Pope or taking the name Leo XIV.

Here's a breakdown of the process of Papal Elections:

Location and Secrecy

The election of the Pope occurs exclusively in the Sistine Chapel of the Apostolic Palace in the Vatican 1. The Sistine Chapel is secured to maintain total secrecy regarding anything said or done pertaining to the election 1. To ensure this, thorough checks are conducted to prevent any unauthorized audio-visual equipment from being installed for recording or transmission 1.

Electors

All Cardinal electors, upon convocation by the Cardinal Dean, are required to participate in the election unless prevented by illness or another grave impediment recognized by the College of Cardinals 5.

Process

The Cardinal electors gather in the Pauline Chapel of the Apostolic Palace 3 4. They proceed to the Sistine Chapel, invoking the Holy Spirit with the chant of the Veni Creator 3 4. The election occurs via secret ballot, where the successful candidate needs a two-thirds vote exclusive of their own 6.

The Pope, as the successor of Peter, has full, supreme, and universal power over the whole Church 7 8. The Pope is the head of the Church and the foundation of its unity 8 9. The Pope has the authority to govern the Church 10, and his responsibility is best guaranteed by its relationship to Tradition, fraternal communion, and trust in the Holy Spirit 11.