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The salient features of shock and isentropic action on gas-liquid media are investigated using a wide-range equation of state for water and vapor. The effect of the pressure and the vapor (gas) content on the speed of sound in the gas-liquid mixture is considered. The parameters of incident and reflected wave in the gas-liquid medium are obtained on the basis of the Rankine-Hugoniot relations for the cases of isothermal, adiabatic, and shock compression of the gas component. It is shown that when the Rankine-Hugoniot equations of the shock compression of the mixture are used within the framework of the single-velocity, two-temperature model with the same pressure and under the condition of the additivity-in-mass of the internal energy of the mixture, each fraction is compressed in accordance with its own individual shock adiabat equation. The calculated and experimental data on the acoustic and shock wave propagation in vapor-and gas-liquid media and their reflection from barriers are compared.

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