The hotter molecules become, the faster they move around. The colder they are, the more slow and lethargic they are
Answer:
1.58 W
Explanation:
Since the sound spreads uniformly in all directions, it must be in a form of a circle with radius of 12 m. So the area of the circle is

From the intensity of the sound we can calculate the power at 12 m

As the temperature of water increases, the density of water will decrease.
Total thermal energy is the answer to your question.