Concentration, Saturation and Vapor Loss of a Gas in Tank
Not what you're looking for?
Hello:
We are to assume a 129 m3 closed tank.
The tank previously contained heptane and therefore has residual vapor.
The vapor pressure is given and known as 40 mm Hg
The temperature is given as 25 degrees C.
1) Is there a way to determine what the residual concentration of heptane gas would be in this closed container?
2) Would you assume that the total enclosed container space was 100% saturated with heptane?
3) If a hole was drilled in the top of the tank, how would one calculate the vapor loss at stated pressure and temp?
Thank you so much.
Purchase this Solution
Solution Summary
This solution deduces the answers to a 3-part numerical problem, in a step-wise manner, with special attention to units and formula related to gas behavior.
Solution Preview
Please see the attachment.
Answer to 510011
Q. How to determine the emission loss from a tank with a known gas or liquid
Hello:
We are to assume a 129 m3 closed tank.
The tank previously contained heptane and therefore has residual vapor.
The vapor pressure is given and known as 40 mm Hg
The temperature is given as 25 degrees C.
1) Is there a way to determine what the residual concentration of heptane gas would be in this closed container?
2) Would you assume that the total enclosed container space was 100% saturated with heptane?
3) If a hole was drilled in the top of the tank, how would one calculate the vapor loss at stated pressure and temp?
Thank you so ...
Education
- BSc (Hons),
- MSc,
- PhD,
Recent Feedback
- "Thankyou for the feedback. I have a few question though; With the first statistic about cost below... “According to Sigma-Aldrich catalog, cost of 1L octane is AUD $ 392.00, whereas the cost of 1L ethanol is AUD $196.00. Moreover, if ethanol is obtained from sugar industry as a by-product, it may cost even less. Source of oxygen is ambient atmosphere, so it costs nothing. So ethanol is much cheaper than petrol, in fact it is half-priced: AUD $ (392-196) = $ 196.” I didn't think it made sense because the cost of petrol per litre is normally a dollar something or even less than a dollar not a couple of hundred of dollars. For example, a statistic that I found in america was: "U.S. ethanol production costs are about $1.20 per gallon of ethanol, or $1.82 per gallon on a gasoline-equivalent basis." However, I was wondering whether you could find an Australian statistic. Also, you mentioned that H20 is not a greenhouse gas. However, in the combustion equations it is actually carbon dioxide and water vapour which are produced and they are both greenhouse gases. Finally, how do I calculate the energy efficiency of ethanol and petrol? "
- "Thank you!"
- "Didnt really answer my questions but gave me a start at least."
- "Once again this is tremendous help I can't thank you enough for not only working the problem but explaining in detail how and why!! KR"
- "Awesome thank you so much for the help!!!"
Purchase this Solution
Free BrainMass Quizzes
General Chemistry - Classification of Matter
This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.
Thermochemistry
The quiz helps in revising basic concepts about thermochemistry.
Functional groups in Organic Chemistry
You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.
Organic Chemistry Naming: Alkanes
This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.