Question 7 The volume expansivity (), isothermal compressibility (kT) and adiabatic compressibility (ks) are important thermodynamic properties for compressible or incompressible substances. A) Evaluate (/P)T+(kT/T)P=0[5 marks] B) The molar volume of an organic liquid at 300K and 1.0 bar is 0.1m3/kmol. Ccalculate the change in entropy of the liquid for isothermal pressure increase to 20 bars [ 6 marks] Data: =1.25103K1 C) Mercury undergoes a change of state from 1 bar and 100C to 1000 bars and 00C. Calculate the change in molar enthalpy of mercury in the process [10 marks] Data