The solute increased to the boiling point of the solvent. In shorter terms it's raising to the boiling point.
Thats allllllll otttt but ill help
step by step
K + I - > KI
Potassium (needs to lose 1 electron) responds with Iodine (needs to pick up 1 electron) to fulfill both component's octet, shaping a salt, potassium iodide
This is a similar case for NaCl, simply unique components. Trust this made a difference.