Question

How does the speed of sound in air vary with temperature ?

Answer 1

The formula to find the speed of sound in air is as follows:

$v=331m{s}^{-1}+0.6m{s}^{-1}{C}^{-1}\times T$

$v$ is the speed of sound and T is the temperature of the air.

So we can see that the speed of sound increases by $0.61m{s}^{-1}$ for each $1^{o}C$ rise in temperature.