Appendix D

Speed of sound in various liquids

water - 1497
methyl alcohol - 1123
benzene - 1326
castor oil - 1500
glycerin - 1923
mercury - 1440
air - 320
liquid helium II - 240

liquids formula - c = E/p = 1/kp

• E represents the bulk modulus of elasticity
  K represents the coefficient of compressibility
  
• oxygen - 316
  CO2 - 261
  hydrogen - 1265
• *ideal gas - c = KRT