The formula of the speed of sound formula is expressed as
P = pressure
ρ = density
γ = Ratio of specific heat.
The sound wave with density o.o43 kg/m3 and pressure of 3kPa having the temp 30C travels in the air. Find out the speed of the sound?
Temperature T = 276 K
Density ρ = 0.043 kg/m3
Pressure p = 3kPa = 3000 Pa
The ratio of specific heat in air = 1.4
The formula for speed of sound is
c = √γ×Pρ
c = √1.4×3000 / 0.043
Therefore, speed of sound = 312.52 m/s