A saturated liquid-vapor mixture of water with a mass of 4.2 kg is contained in a rigid tank at a pressure of 225 kPa. Initially, 80% of the mass is in the liquid phase. All of the liquid in the tank is then vaporized by an electric resistance heater such that the system now contains a saturated vapor. What is the total entropy change of the steam during this process
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Ответ:
1500 m/s
Explanation: