What is the electrical energy of two charged capacitors converted into when they are connected in parallel?

What is the electrical energy of two charged capacitors converted into when they are connected in parallel? Under what condition will the total electrical energy of charged capacitors remain unchanged after they are connected in parallel?

In thermal energy (wires are heated) and energy of electromagnetic radiation.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.