Question: Please help answer both questions, upvote if complete and arrived on given answers. Thank you! 3. The vapor pressure of liquid Arsenic is given by

Please help answer both questions, upvote if complete and arrived on given answers. Thank you!

given answers. Thank you! 3. The vapor pressure of liquid Arsenic is

3. The vapor pressure of liquid Arsenic is given by the equation logio P=-2460/T+ 6.60 that of solid arsenic by logo Pan=-6947/T + 10.8. Find the temperature at which the two forms of As have the same vapor pressure. What is the value of this pressure? (Ans. T = 1091 K and P = 4.435 mmHg) 11. The overvoltage of Hy on Pb was determined in 0.1 molal H SO, solution (y=0.265) by measuring during electrolysis the potential of the lead cathode against a normal calomel electrode. The potential thus observed was 1.0685 volts. What is the overvoltage of H, on Pb? (Ans. 0.713 volts)

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