For a steady process, the conditions at stage 1 and stage 2 are, respectively, h1 = 300 kJ/kg, h2 = 150 kJ/kg, S1 = 1.25 kJ/kg K and S2 = 0.8 kJ/kg K. The ‘availability’ at the ambient temperature 300 K will be
1
15 kJ/kg
2
20 kJ/kg
3
25 kJ/kg
4
35 kJ/kg