For a compressible (elastic) fluid (liquid or gas), the occurrence of a slight localized increase in pressure, p and density, ρ of the fluid results in a small wave called a wave of compression. What...

For a compressible (elastic) fluid (liquid or gas), the occurrence of a slight localized increase in pressure, p and density, ρ of the fluid results in a small wave called a wave of compression. What is the velocity (celerity) of the small wave of compression called? How is the celerity related to the bulk modulus of elasticity, Ev of the fluid? What would be the value the bulk modulus of elasticity, Ev for an ideal incompressible (inelastic) fluid?