Use the two-point version of the Clausius-Clapeyron equation. The vapor pressure of liquid bismuth is 400. mm Hg at 1.72x10³ K. Assuming that AHvap for Bi (149 kJ/mol) does not change significantly with temperature, calculate the vapor pressure of liquid Bi at 1.75x10³ K. mm Hg

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Use the two-point version of the Clausius-Clapeyron equation.
The vapor pressure of liquid bismuth is 400. mm Hg at 1.72x10³ K. Assuming that ÄHvap
for Bi (149 kJ/mol) does not change significantly with temperature, calculate the vapor
pressure of liquid Bi at 1.75×10³ K.
mm Hg
Transcribed Image Text:Use the two-point version of the Clausius-Clapeyron equation. The vapor pressure of liquid bismuth is 400. mm Hg at 1.72x10³ K. Assuming that ÄHvap for Bi (149 kJ/mol) does not change significantly with temperature, calculate the vapor pressure of liquid Bi at 1.75×10³ K. mm Hg
Determine enthalpy of vaporization graphically using the Clausius-Clapeyron equation.
The vapor pressure of heptane (C7H16) has been measured over a range of temperatures.
(a) Which of the following should give a linear plot (temperatures in K)?
On the x-axis:
C
On the y-axis:
Close Problem
(b) When the appropriate plot is made, the resulting straight line has a slope of -4.26x10³
K.
Use this information to determine AHvap for C7H16.
kJ/mol
Transcribed Image Text:Determine enthalpy of vaporization graphically using the Clausius-Clapeyron equation. The vapor pressure of heptane (C7H16) has been measured over a range of temperatures. (a) Which of the following should give a linear plot (temperatures in K)? On the x-axis: C On the y-axis: Close Problem (b) When the appropriate plot is made, the resulting straight line has a slope of -4.26x10³ K. Use this information to determine AHvap for C7H16. kJ/mol
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