Screen G

3 G. Relative Density of Liquids Containing Methane and Ethane Back to Main

This page is used to determine the relative density for liquids containing Methane and Ethane. A liquid containing significant quantities of methane and ethane will have a lower density due to the high kinetic energy of these molecules. The correlations for such mixtures are determined by the Temperature correction for Relative Density in Figure 3.17 (Figure 3.15) and the Relative Density of Liquid Containing Methane and Ethane at Atmospheric Pressure and 15° F graph (Figure 3.16).

To calculate the density of the liquid containing methane and ethane, mole fraction of each component has to be entered. If C7+ is present, the Molecular Weight of C7+, Specific Gravity of C7+, Temperature, Pressure, and Mole % of C7+ must be entered into their entry spaces. Once data input has been done, click Run to execute the solution.

C7+ Molecular Weight is the average molecular weight of all the components with molecular weight greater than that of Heptanes.

C7+ Specific Gravity is the relative density of all components with a molecular weight greater than Heptanes.

The component table is a list of the possible compounds along with their symbols to be used with this program. In the far right column titled Mole % use the mouse to choose the available cell and enter the Mole % of each component in the mixture. Use the Up and Down arrow keys to move from cell to cell. The total for the Mole % should be 100.00.

Please refer to Example 3.5 in page 77, Volume 1 for more details.

Back to Main