In which of the three media, air, water or iron, does sound travel the fastest at a particular temperature?

Sound travels faster in iron and slowest in air.

Explanation:

Sound travels the fastest in iron, followed by water, and the slowest in air at a particular temperature.

Speed of Sound in Different Media (Approximate Values at Room Temperature)

1. Iron (Solid) – 5000 m/s
2. Water (Liquid) – 1500 m/s
3. Air (Gas) – 343 m/s