 Custom Search Clausius-Clapeyron Lab Analysis Here are the equations
For the lab we use
to find the DHvap of a liquid. Looking at the equation you should notice the Y=MX+ B format. Y=lnP M=slope= -DHvap/R X=1/T B=C which we don't worry about By making a plot of lnP vs. 1/T we should get a strait line The slope of this line times -R will give us the Heat of vaporization.
Here is a plot of vapor pressure vs. Temp
Not a straight line The plot of Ln ofvapor pressure vs. 1/ Temp
A nice straight line. Find the slope of this line and calculate the DHvap. slope= -DHvap/R |
