The equation for the speed of sound in air v can be simplified to give the equation for the speed of sound in air as a function of absolute temperature. Where a pressure wave passes through a liquid contained within an elastic vessel the liquids density and therefore the wave speed will change as the pressure wave passes. K Bulk Modulus of Elasticity Pa psi r density kgm3 lbft3 This equation is valid for liquids solids and gases.
The speed of sound in room temperature air is 346 meters per second.
Speed of Sound Formula. Therefore speed of sound 31252 ms. The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. Density r 0043 kgm3.