Which of the following statements is true of a mature technology? It is more expensive than immature technologies.
It enjoys economies of scale.
It requires a lot of continual building and engineering.
It needs large investments to build infrastructure.

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?