La velocidad del sonido

The video tutorial explains that the speed of sound varies under different conditions, such as temperature and the medium through which it travels. Sound moves faster in water than in air and even faster in solids due to stronger particle interactions. The speed of sound also increases with temperature as molecules move faster. In less dense media, sound travels quicker because lighter molecules require less energy to move. Helium, being lighter than air, significantly increases sound speed. Overall, the speed of sound is influenced by several factors, making it impossible to define a single speed.

What role does the density of a medium play in the speed of sound?

Why is it impossible to define a single speed of sound?