A rigid (closed) tank contains 16 kg of saturated water at 90 °C. If all of this water is in the saturated form, answer the following questions: a) Determine the steam quality in the rigid tank. b) Is the described system corresponding to a pure substance? Explain. c) Find the value of the pressure in the tank. d) Calculate the volume (in m³) occupied by the gas phase and that occupied by the liquid phase (in m³) if 15% of the mass of liquid water passed into vapor phase. e) Deduce the total volume (m³) of the tank. f) On a T-v diagram (assume constant pressure), draw the behavior of temperature with respect to specific volume showing all possible states involved in the passage of compressed liquid water into superheated vapor. g) Will the gas phase occupy a smaller volume if the volume occupied by liquid phase decreases? Explain your answer (without calculation). h) If liquid water is at an elevation of 9800 m above sea level, explain how boiling temperature varies with decreasing elevation.

# A rigid (closed) tank contains 16 kg of saturated water at 90 °C. If all of this water is in the saturated form, answer the following questions: a) Determine the steam quality in the rigid tank. b) Is the described system corresponding to a pure substance? Explain. c) Find the value of the pressure in the tank. d) Calculate the volume (in m³) occupied by the gas phase and that occupied by the liquid phase (in m³) if 15% of the mass of liquid water passed into vapor phase. e) Deduce the total volume (m³) of the tank. f) On a T-v diagram (assume constant pressure), draw the behavior of temperature with respect to specific volume showing all possible states involved in the passage of compressed liquid water into superheated vapor. g) Will the gas phase occupy a smaller volume if the volume occupied by liquid phase decreases? Explain your answer (without calculation). h) If liquid water is at an elevation of 9800 m above sea level, explain how boiling temperature varies with decreasing elevation.

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