For the reaction CO(g) + 2H_2(g) CH_3OH(g) Delta G_700 K degree = -13.457 kJ. Wh

Question

For the reaction CO(g) + 2H_2(g) CH_3OH(g) Delta G_700 K degree = -13.457 kJ. What is K_p for this reaction at 700. K? a. 1.00 b. 1.54 c. 10.1 d. 2.31 e. none of these The anode in a voltaic cell and in an electrolytic cell is a. the site of oxidation and of reduction, respectively. b. the site of reduction and of oxidation, respectively. c. positive in both cells. d. the site of reduction in both cells. e. the site of oxidation in both cells. The cell reaction for a certain alkaline dry cell is Zn(s) + 2MnO_2(s) + H_2O(l) rightarrow Zn(OH)_2(s) + Mn_2O_3(s) Which of the following statements concerning this cell is/are correct? MnO_2(s) is oxidized to Mn_2O_3(s) during cell discharge. Water is consumed during the discharge of this cell. Zn(OH)_2(s) forms at the anode during discharge of this cell. a. 1 only b. 2 only c. 3 only d. 2 and 3 d. 2 and 3 e. 1, 2 and 3 A strip of iron is placed in a 1 M solution of iron(II) sulfate, and a strip of copper is placed in a 1 M solution of copper(II) chloride. The two solutions are connected with a salt bridge, and the two metals are connected by a wire. Reduction Half-Reaction E degree (V) Fe^2+ (aq) + 2e^- Fe(s) - 0.41 Cu^2+(aq) + 2e^- Cu(s) 0.34 Which of the following takes place? a. Sulfur deposits at the iron electrode. b. The Fe(II) concentration of the iron half-cell decreases. d. Copper atoms deposit at the cathode. d. Chlorine is produced at the copper electrode. e. Chlorine is produced at the iron electrode.

Explanation / Answer

Q8.

Find Kp

dG = -RT*ln(Kp)

-13.457*10^3 = -8.314*700*ln(Kp)

Kp = exp(13457/(8.314*700))

Kp = 10.09

nearest answer is C, 10.1

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