(a) Balance the following skeleton reaction and identify the oxidizing and reducing agents. Fe2+(aq)+MnO4(aq)Mn2+(aq)+Fe3+(aq)(acidic) (6 marks) (b) The equilibrium constant for the following reaction is Kc=9.1106 a temperature of 25C. Fe3+(aq)+Hg22+(aq)Fe2+(aq)+Hg2+(aq) (i) Find the standard free energy change, G0, at 25C. (5 marks) (ii) If standard state concentrations of the reactants and products are mixed, in which direction does the reaction proceed? (5 marks) (iii) Calculate G when the concentrations of [Fe3+]=0.20M,[Hg22+]=0.010M, [Fe2+]=0.010M and [Hg2+]=0.025M. In which direction will the reaction proceed to achieve equilibrium? (5 marks) (c) Differentiate between Surface tension and Interfacial tension. ( 4 marks) Data Table Table A.2 Values of the Universal Gas Constant R=8.314Jmol1K1=8.314m3Pamol1K1=83.14cm3barmol1K1=8314cm3kPamol1K1=82.06cm3atmmol1K1=82363.95cm3torrmol1K1=0.08206m3atmkmol1K1=1.9872(cal3mol1K1=1.986(Btu)(lbmole1(R)1=0.7302(ft3(atm)(lbmol)1(R)1=10.73(ft)3(psia)(lbmol)1(R)1=1545(ft)(lb)(lbmol)1(R)1