Part A The instruction booklet for your pressure cooker indicates that its highe

Question

Part A The instruction booklet for your pressure cooker indicates that its highest setting is 13.1 psi. You know that standard atmospheric pressure is 14.7 psi, so the booklet must mean 13.1 psi above atmospheric pressure. At what temperature in degrees Celsius will your food cook in this pressure cooker set on "high"? Express your answer numerically in degrees Celsius. View Available Hint(s) ?,- | 19.25 ° C Submit revious Answer X Incorrect, Try Again: 5 attempts remaining Part B Which of the following factors affect the vapor pressure of a liquid? Check all that apply. View Available Hint(s) temperature atmospheric pressure amount of liquid type of liquid addition of solute surface area of the liquid

Explanation / Answer

part A)

initial pressure P1 = 14.7 psi

final pressure P2 = 14.7 + 13.1 = 27.8 psi

delta Hvap = 40.68 kJ/mol

temperature T1 = 373 K

T2 = ??

ln (P2 / p1) = deltaHvap / R [1/T1 - 1/ T2]

ln (27.8 / 14.7) = 40.68 / 8.314 x 10^-3 [1/373.15 - 1/ T2]

T2 = 392.2

final temperature T2 = 119 oC

part B)

temperature

addition of solute

type of liquid

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