In college Chemistry, I had discovered that when you were given temperatures in Fahrenheit, you did not need to convert to Kelvin and then take the natural log. A far easier method was to add 459.67 to the Fahrenheit values converting them to degrees Rankine, then just take the natural log. So much easier.
Thank you! This is going to be a great read. Especially the coverage of Rankine who always fascinated me!