SPEED OF SOUND IN GAS


INPUT   DATA EXAMPLE Of Input/Output

Title  

Molecular weight of gas, M   kg/kmol 
Temperature, T  °C  
Adiabatic constant, γ   


     Reset


OUTPUT   VARIABLES   &   GRAPHS

Variables   Values   Units
 ♦  Speed of sound, v  m/s 

THEORY  &   FORMULAE

Speed Of Sound In Gases

The speed of sound in an ideal gas can be represented by the equation:

   v = √[γRT/M]

where
     M = molecular weight of the gas (air = 28.95)
     T = temperature of gas in absolute unit
     R = universal gas constant (= 8314 J/kmol.K)
     γ = adiabatic constant = ratio of specific heats of the gas (air = 1.4)

Tips

    ◊ Use link EXAMPLE Of Input/Output  to demo data entry expectations and results; you may edit & use it as starting point

BIBLIOGRAPHY