Asked by Anonymous
Given data collected for a liquid.
Equilibrium vapor pressure in torr:
4.6, 17.5, 149.4, 525.8
T in *C
0., 20., 60., 90.
*Find T in K, Find 1/T in K-1 and 1n VP.
*Then make a graph of 1n vapor pressure (1n VP) versus 1/T (where temperature is in units of Kelvins.) Using linear regression analysis (using excel), determine the slope, intercept, r and r squared for the best fit line. Write the equation for the best straight line in terms of 1n VP and 1/T.
*Using the equation you have determined, draw the best straight line among your data points. Show your calculation of the guide points for the best straight line below.
*Determine delta H in joules/mole from the slope calculated in part 1 from linear regression analysis.
*From the equation for the best straight line, determine the equilibrium vapor pressure at 25 *C.
*From the equation for the best fit line, determine the temperature where the equilibrium vapor pressure equals exactly 760 torr, which is the normal boiling point.
Equilibrium vapor pressure in torr:
4.6, 17.5, 149.4, 525.8
T in *C
0., 20., 60., 90.
*Find T in K, Find 1/T in K-1 and 1n VP.
*Then make a graph of 1n vapor pressure (1n VP) versus 1/T (where temperature is in units of Kelvins.) Using linear regression analysis (using excel), determine the slope, intercept, r and r squared for the best fit line. Write the equation for the best straight line in terms of 1n VP and 1/T.
*Using the equation you have determined, draw the best straight line among your data points. Show your calculation of the guide points for the best straight line below.
*Determine delta H in joules/mole from the slope calculated in part 1 from linear regression analysis.
*From the equation for the best straight line, determine the equilibrium vapor pressure at 25 *C.
*From the equation for the best fit line, determine the temperature where the equilibrium vapor pressure equals exactly 760 torr, which is the normal boiling point.
Answers
Answered by
DrBob222
#1. We can't draw graphs on these boards.
#2. How much of this do you know how to do.
#3. The 1 you are using for ln should be an ell and not a one (but you're keyboard may not know the difference).
#4. Here is a site that may help you get started. http://www.science.uwaterloo.ca/~cchieh/cact/c123/clausius.html
#2. How much of this do you know how to do.
#3. The 1 you are using for ln should be an ell and not a one (but you're keyboard may not know the difference).
#4. Here is a site that may help you get started. http://www.science.uwaterloo.ca/~cchieh/cact/c123/clausius.html