Answer:
The particles garner more and more energy as the boiling continues and thus the energy particles would find a way to escape from it's surface and ultimately the sauce will get to a point where it will turn to gas.
Step-by-step explanation:
When berry sauce is boiling, it's particles will garner more energy and therefore will move at an increasing faster rate which makes the sauce to continuously expand. Now, the hotter the boiling gets, the more the most energetic particles located at the surface of the sauce will escape from the surface of the sauce. This is because liquids usually evaporate faster when they undergo heating and more particles will have sufficient energy to break away.
As boiling continues, it will get to a point that even particles in the middle of the sauce will begin to form bubbles of gas and at this point, the sauce would have achieved sufficient heat that it will begin to turn to gas.