Chemical Engineering Thermodynamics numerical salue of Answer any three questions 1. (a) Obtain the enthalpy departure function of an ideal gas (b) The equation of state of a gas can be expressed as Z=1+BP. Obtain the fugacity coefficient of the gas at temperature T1 and pressure P1 2. The molar enthalpy of a binary solution is given by h=300x1+1000x2+(5x1+10x2)x1x2 Obtain the numerical value of pure component enthalpies, partial enthalpy at x1=0.4 and at infinite dilution.(10) 3. The volumetric data for benzene(b) and cyclohexane(c) can be expressed by the following expression V=109.4 16.8xb2.64xb2. Find the expression of Vb,Vc and V. 4. (a) The excess Gibbs free energy of a binary liquid system can be expressed as RTGE=0.5x1x2. Obtain the activity coefficient of component 1. (b) The solution behaviour of a certain class of substance can be described by G=Eixi+RTxilnxiP. Derive the formulae for Sl. (4+6)