Calculate the difference in the speeds of sound in air at -3ºc,60 cm pressure of mercury and 30ºc ,75 cm pressure of mercury. the speed of sound in air at 0ºc is 332m/s.
Asked by shivamsaraswat484
12th April 2018,
5:21 PM
Answered by Expert
Answer:
Speed of sound v = square root of( B /ρ ) m/s , where B is bulk modulus and ρ is density of gas. Density depends on pressure and temperature. Relevanat equations are given below to calculate speed of sound at given temperature and pressure. ρ is density, p is pressure, T is temperature and R is universal gas constant. 0 subscript refers the property at 0º C.
case 1:- p = 60 cm of mercury and T = -3ºC = 270 K . speed of sound is given by
case 1:- p = 76 cm of mercury and T = 30ºC = 270 K . speed of sound is given by
Answered by Expert
13th April 2018,
2:55 PM
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