Define partial molar properties. Discuss various methods for evaluation of partial molar properties.
[7 marks]List out various methods for evaluation of fugacity coefficient of pure component. Discuss any two in detail.
[7 marks]Explain Retrograde condensation in detail with figure.
[7 marks]Show that for a binary system, Henry’s law is valid for component ‘1’ then Lewis Randall rule is valid for component ‘2’.
[7 marks]The enthalpy at 300 Kand 1 bar of a binary liquid mixture is: H = 400X + 600X + X X (40X + 20X ) where His in J/mol for the stated temperature and pressure, determine:
[7 marks]Expression for partial molar enthalpies of both components 1 and 2, (ii) Numerical value for pure component enthalpies Hand H ,12 (iii) Numerical values for the partial molar enthalpies for both the components at infinite dilution.
[ marks]Discuss various methods for checking the consistency of experimental VLE data.
[7 marks]Explain T-x,y diagram for partially miscible system.
[7 marks]At 300 Kand 1 bar ,the volumetric data for a liquid mixture of benzene and cyclohexane are represented by: V=109.4 × 10-6 − 16.8 ×10-6 x − 2.64 ×10-6 x2 where x is the mole fraction of benzene and Vhas the units of m3/mol. Find expressions for the partial molar volumes of benzene and cyclohexane.
[7 marks]Construct P-x-y diagram for the cyclohexane (1) / benzene (2) system at 313 K. Use the following expressions for the liquid-phase activity coefficients: ln γ = 0.458 x 2, ln γ = 0.458 x At 313 K, P S= 24.62 KPa and P S= 24.41 KPa.12
[2 marks]Discuss the criteria of chemical reaction equilibrium.
[7 marks]Discuss about the effect of temperature on equilibrium constant.
[7 marks]Write short note on Van Laar equation and Margules equation.
[7 marks]Discuss minimum and maximum boiling azeotropes giving examples for each with neat diagrams.
[7 marks]In the synthesis of ammonia, stoichiometric amounts of nitrogen and hydrogen are sent to a reactor where the following reaction occurs. N2 + 3H2 →2NH3 The equilibrium constant for the reaction at 675 Kis 2 x 10-4 . Determine the percent conversion of nitrogen to ammonia at 675 K & 20 bar.
[7 marks]Prove that ΔG0 = -RT lnK1
[7 marks]Write a brief note on Excess Properties.
[7 marks]Discuss in detail: Ideal solutions and Non-ideal solutions.
[7 marks]