Question

What’s the velocity of a sound wave traveling through air at a temperature of 20°C (68°F)?

Answer 1

By velocity, you are referring to the speed of sound. It can be modelled by the equation:

V = 331m/s + (0.6m/s/C) x T (where T stands for temperature and V stands for Velocity).

Plug in the numbers and you'll get 343m/s