For the reaction N, (g)+ 3H, (g) - 2NH, (g ), equilibrium pressures are Py, = 2.6 atm, P, = 5.6 atm, and PyH, =1.2 atm . Calculate the Gibb's free energy of the reaction at a NH3 H2 temperature of 298K. (A) 1.43 kJ (B) 1.43 x10* J (C) 1.4110 J (D) 4.25 x10' J