Question

How much faster does sound travel on a hot summer day, 40 °C, than on the coldest winter day, -40 °C?

Answer 1

We will determine the velocities as follows:

hot day:

$V_{hot}=331+0.59(40)\Rightarrow V_{hot}=354.6m/s$

Cold day:

$V_{cold}=331+0.59(-40)\Rightarrow V_{cold}=307.4m/s$

So, in the hottest day the speed of sound will be moving 47.2 m/s faster than in the coldest day.