ap Op 1- If we have an adiabatic speed of sound, inside of fluid with equation of where P is fluid pressure, and p is our density. laws of thermodynamics combined with the appropriate Maxwell equations prove that: c? au P + p* au ap P Using this result prove that for an ideal gas with constant heat capacity the adiabatic speed of C. y = c=V7RT C sound is where is the Universal Gas constant and T is the absolute temperature of the fluid. Using the last formula calculate the average adiabatic speed of sound in Chicago during the months of January and July. What is the average value of the isothermal speed of sound during the same months