A rigid tank contains 5 kg of saturated vapor steam at 100C. The steam is cooled to

Question:

A rigid tank contains 5 kg of saturated vapor steam at 100°C. The steam is cooled to the ambient temperature of 25°C.
(a) Sketch the process with respect to the saturation lines on a T-v diagram.
(b) Determine the entropy change of the steam, in kJ/K.
(c) For the steam and its surroundings, determine the total entropy change or Sgen associated with this process, in kJ/K.