Question

(9) A spontaneous process has the change of free energy (a) AG>0 (c) AG = 0 (b) AG <O (d) AH>0 and AS <O (10) A chemical reaction has AH = 10 kJ. AS = 50 J/K at temperature T = 300 K. the reaction AG = J. (a) 5000 (b) -5000 (c) 10000 (d) 50 (11) For reaction: Ag (s) + 2 Cl2 (g) Ag° (aq) +CI (aq), the standard free energy of formation: AGf° (Ag*) = 77.1 kJ/mol, AGfo (Ag) = 0 kJ /mol, AGP (CI) = -131.1 kJ / mol AG (Cl2) = 0 kJ / mol kJ. The free energy change of the reaction: AG (а) -54 (d) 0 (c)-131.1 (b) 77.1 (12) For reaction : CO(g) + Cl2 (g) known as K = 5.6 x 1035, AG (a) -0.082 x 300 In (5.6x1035) (c) -8.314 x 300 ln (5.6x1035) COCI2 (g) at 27°C, its equilibrium constant is the free energy change of the reaction: J. (b) -8.314 x 27 In (5.6x1035) (d) 0

Answer 1

(9 A Spontaneous proum has the change of free energy ACCO ophon(6) (10) A chemical reaction has AH = 10KJ) AS = 505/k at temperature T=300K, the reaction A4 = -5000 3 option (b) We know that AGL = An - TAS AH= 10 KI G = 100001-500x300)7/K.K = 10000 HJ = (10000 -- 15000) As = 50 J/K = -5000 1 To 300K Ag (s) + C12 (1) 3 Agt (44) + c1 (14) Standard free energy of formation AG - (Ag +) = 77•1 KI/mor, sore (C1") --191.1 kJ/mol 66 (Ag) = 0 kg/moi i scrime (C12) = 0 kulmoi AG - AG (Product) - acum (Dreactant) - rae (Agt) + Aans (1-)]- [664(49) + { ou celo] -F20 ( 7+1 - 131.13. [0 +0] = -54 KJ the free energy change of seaction. 4°= -51 kv. opton (a) 12 for reactionico (9) +012(1) COC209) at 27°C, its 4444) equilibrium constant in Krown ar k=5.CX10% the free energy of the sheaction acro= 56.314x 300 1m (5.6 X1035) Simon (options) we know, AG" = - RTINK R: Giao cơm+ : 6:314 8 3: mek -8344 X 300 X 600 Wt. + c = (27+273) K = 30 OK gimon K = 5.64103 in (5.6 x1035)