7/25/2019 How to Calculate Vapor Pressure Using Clausius-clayperon Equation

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HOW TO CALCULATE VAPOR PRESSURE USING CLAUSIUS-CLAPEYRON EQUATION (CAL TECH)

Recall: Clausius-Clapeyron Equation

*

ln VH

p B

RT

= +

( ),y mx b f x y= +Recall: Slope-intercept form of a line

*

Clausius-Clapeyron Equation is a linear function

*1, lnf p

T

having an intercept at B and with a slope ofV

H

R

CA !EC": #se $%&E ' (et ) +,! !he set of all ) values should .e the inverse of the ff/ given temperature in 0/

y ln p*!he set of all y values should .e the natural logarithm of the ff/ given pressure1

B 2S"34!5 2+5 265 2+5

V

H

R

2S"34!5 2+5 265 2(5

! at a given pressure 7* Input ln p*(given)) then 2S"34!5 2+5265 285 then solve for +,A9S1

7*at a given temperature ! Input 1/T(given)) then 2S"34!5 2+5 265265

then solve for eA9S1

E)ample: