A tank of volume 0.05 m³ contains a mixture of saturated water and saturated steam at 200°C. The mass of the liquid present is 8 kg. The entropy (in kJ/kg K) of the mixture is ___________ (correct to two decimal places).

Property data for saturated steam and water are:

At 200°C, P_sat = 1.5538 MPa

v_f = 0.001157 m³/kg, v_g = 0.12736 m³/kg

S_fg=4.1014 kJ/kg K, s_f =2.3309 kJ/kg K