Calculate Temperature Correlated Properties
This screen for the calculation of Temperature Correlated Properties is displayed along with the Point Property Calculation screen. This screen is very similar to the other calculation. You need to select Method for each property to be calulated, specify the Temperature and select a mass or mole basis (for those intensive properties). The screen below show the "Lee-Kesler" method has been selected for the calculation of Vapor Pressure at 59 C. In additon, the "Parachor" method has been selected for Surface Tension at 25 C. Tables of properties can also be generated, that will be illustrated below. Notice the "yellow and red lights". These have the same meaning as in the Point Prop Calculation. The yellow simply indicates that it hasn't been calculated yet. The red next to Liquid Density indicates that it is required for the calculation of one of the other, specifically the Parachor Surface Tension. The red indicator in the upper right hand corner means that one or more point properties are required for the calculation of these properties. You will need to Jump over to that screen to select method for those Ppoint Properties. Once all of the red lights are out you can press the Calculate option from the Menu Bar.
Next, because the Parachor Method Requires Group Contributions, you are prompted for those at this time. This information will be saved in the database and anytime in the future that you calculate using the Parachor Method, this screen will appear populated as you see it below, you will not have to reenter the groups, unless you want to.
Finally, all properties are available.
Note that you can change the units to whatever you would like.
You can now select to generate a Table of properties from any of the properties, by checking the box on the far right. This displays a temperature range at the bottom of the screen that allows a range of temperatures to be entered.