1. The problem statement, all variables and given/known data Given Pressure=P=700 KPa Specific Entropy = s = 7.6953 KJ / ( K Kg ) Find the Specific Enthalpy (h) 2. Relevant equations No equation Am using the property tables at the end of the following book : Thermodynamics, an engineering approach, by Yunus A. Cengel and Michaek A.Boles 7th edition. 3. The attempt at a solution By obtaining the values of s_f and s_g from Table A.5 and compare it to s, the state is Superheated Vapor. This means I will use Table A.6 The pressure = 700 KPa = 0.7 MPa But the most closest pressure to this pressure is 0.6 MPa and 0.8 MPa So I will use interpolation like that P (MPa) h 0.6 h1 0.7 h 0.8 h2 h1 and h2 must be calculated in order to apply interpolation to find h To find h1,h2 Need to know T of the state But I do not how to find it Help please.