You are planning an experiment in which you have a mixture of 5 moles of hydrogen (H2).

Question:

You are planning an experiment in which you have a mixture of 5 moles of hydrogen (H2).
4 moles of water (H2O), and 1 of mole ethane (C2H6). You want to calculate the pressure of this mixture to determine which material to use to construct the vessel to contain these gases. The vessel needs to be able to hold 12.5 L (0.0125 m3), and the maximum temperature in the laboratory is 27°C. You then go to the library and fi nd the pure species parameters for the van der Waals equation, a and b. However, when you get back to the laboratory, and realize you forgot to label them.

(a) Using only molecular arguments, match each species to its appropriate set of parameters.
Explain your reasoning. image text in transcribed