Answer : The explosion will release heat energy into the air.
Step-by-step explanation:
Explosion : It is a rapid increase in volume of substance with release in large amount of energy and rise in temperature. During explosion heat energy is released.
Heat is itself is a form of energy. It is a energy which moves from hotter object to cooler object. With the flow of heat , temperature of the object also gets increases.
So,The temperature in the room is rising because the explosion is releasing heat energy into the air, increasing the speed of the air molecules in the room.