Explore BrainMass
Share

Understanding how a real gas differs from an ideal gas

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

In an industrial process, nitrogen has to be heated to 500K at constant volume. If it enters the system at 300 K and 100 atm, what pressure does it exert at its final working temperature? Treat it as a van der Waals gas. Assume the volume is 1 m^3 (where "^" means "to the exponent").

© BrainMass Inc. brainmass.com October 24, 2018, 5:17 pm ad1c9bdddf
https://brainmass.com/chemistry/gas-laws/understanding-how-a-real-gas-differs-from-an-ideal-gas-6133

Solution Preview

Please refer to the attached Word file. The text from the Word file has been pasted below, however please note that pasting can cause changes / error sin the formatting, so it is best for you to use the answer provided in the ...

Solution Summary

The solution provides the required equations, as well as a description of how to use the equations to solve the problem. In addition, the complete solution (steps and final numerical answer) are shown.

$2.19
See Also This Related BrainMass Solution

Finding Molar Mass Through Dumas Method

We are trying to determine the molar mass of an unknown liquid through Dumas Method: measure density (mass/volume) of its vapor at a known temperature and pressure. I am having trouble answering question 3 and question 4 as attached.

1) I did the calculations for question 3 but am really lost on whether I plugged in the right numbers eg whether I use the # of moles calculated from the ideal gas equation in question C. If I do that, wouldn't the response make no sense? We're trying to determine the difference between the known between an ideal or non-ideal gas but if the moles of the gas is derived from the ideal gas equation to plug into non-ideal gas equation, wouldn't the results be wrong? Also, it says you can determine the actual volume of the gas molecules from the volume of the liquid, because in a liquid, the molecules are compressed about as close together as possible - what does this mean? I had no idea how to solve this so I just used the volume of a liquid - is this wrong? Are my calculations correct?
2) I'm having trouble with question 4: part a&b, have to eplain why chemically (not just b/c of mathematics as I already did. Also, question c&d - please advise.

thank you!

View Full Posting Details