#### Phase of Water

A rigid container with a constant volume of 1 m³ is filled with 0.5 kg
of water at a temperature of 30°C.
To answer the following questions use the data in the tables.
**Saturated liquid water :**

T°C | p [MPa] | v[m³/kg] |
u[kJ/kg] | h[kJ/kg] | s[kJ/(kg K)] |

30 | 4.246 | 0.0010 | 125.78 | 125.79 |
0.4369 |

**Saturated water-vapor :**

T°C | p [MPa] | v[m³/kg] |
u[kJ/kg] | h[kJ/kg] | s[kJ/(kg K)] |

30 | 4.246 | 32.89 | 2416.6 | 2556.3 |
8.4533 |

**Water at critical point :**

T°C | p [MPa] | v[m³/kg] |
u[kJ/kg] | h[kJ/kg] | s[kJ/(kg K)] |

374.14 | 22.09 | 0.00316 | 2029.6 | 2099.3 |
4.4298 |

- What is the specific volume of the water ?

- What phase is the water in ? (compressed liquid, saturated liquid/vapor
mixture, or superheated vapor). What is the precise reason
for your choice ?

- Upon heating, the temperature and pressure in the constant-volume
container rise. Ultimately, the water will become either compressed
liquid or superheated water. Which one is it going to be
and why ?