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.
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.