please solve all these questions with showing the work 6. Determine AGo for the
ID: 830714 • Letter: P
Question
please solve all these questions with showing the work
6. Determine AGo for the following reaction according to given data: CH4(g) 202(g) CO2 (g) 2H2O(l Substance AG, (kJ/mo CHA(g) 50,72 O2(g) CO2 (g) 394,4 237.4 A) -581.1 B) -818.5 kJ C) 131.1 kJ D) -682.5 kJ E) -919.9 kJ 7. For a reaction system that is at equilibrium, which of the following must always be true? B) ALS 0 E) AH 0 8. For a reaction that has an equilibrium constant of 7 x 10 3, which of the following statements mus be always true? A) ASO is positive. (B) AG is positive. C) AGo is negative. D) A is negative. E) AH is positive. 9. Water gas, a commercial fuel, is made by the reaction of hot coke carbon with steam: C(s)+H20 (g) CO(g) +H2 (g) when equilibrium is established at 805C, the concentrations ofco, H2, and H20 are 4.00 x 10 2, 4.00 x 102, and 1.00 x 10 mol/L, respectively. Calculate the value of AGo for this reaction at 805°C. A) 53.7 kJ B) 12.3 kJ C) 16.4 kJ D) -12.4 kJ E) none of theseExplanation / Answer
6) deltaGfproduct - deltaGfreactant
2x H2O+CO2 - (O2+CH4)
818.5 kJ Option B
7) deltaG = 0
8) deltaGo = -RTlnKeq
deltaGo = positive option B
9) Keq = [CO][H2]/[H2O]
= 0.16
deltaGo = -RTlnKeq
= -8.321x1078xln0.16
= 16438.3 = 16.4 kJ option C
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