Question

How fast will a sound wave travel in air at a temperature of 15degree



c. How to solve?

Answer 1

velocity of sound at 25 celcius is 343m/s
and,
$v = \sqrt{kt}$
where t is temprature
$\frac{343}{ \sqrt{298} } = \sqrt{k}$
v at 15 celcius
$v = \frac{343}{ \sqrt{298} } \sqrt{288}$