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Homework Help Overview

The original poster attempts to analyze a problem involving a piston pump and the reduction of pressure in a vessel, using principles of thermodynamics and ideal gas behavior. The context includes calculations related to isothermal processes and the effective volume of the pump.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants emphasize the importance of showing work before receiving assistance, indicating a focus on understanding the problem-solving process. There is also a discussion about the meaning of acronyms used in the thread.

Discussion Status

The discussion is currently focused on encouraging the original poster to provide their own calculations before further guidance can be offered. Some participants are reinforcing community guidelines regarding homework help.

Contextual Notes

There is an emphasis on the need for the original poster to demonstrate their understanding and work, as per the forum's guidelines. The discussion also touches on the use of specific acronyms that may not be familiar to all participants.

Dirac
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A piston pump having a barrel of effective volume 100cm3 is used to exhaust a vessel of volume 2.5x(10^3)cm3. If the initial pressure in the vessel is 1 atm, estimate the reduction in pressure produced by two strokes of the pump, assuming that all processes are isothermal and that air behaves as an ideal gas. Further, estimate the numbe of strokes needed to reduce the pressure in the vessel from 1 atm to 0.02 atm.

Thanks!
 
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Show some work of your own first. TNSTAAFL.
 
FredGarvin said:
Show some work of your own first.

Yes, please do that. I'm making a strong effort to enforce the Guidelines which everyone agreed to: No help until work is shown.
I've soft deleted one post (by AM) which I will restore when Dirac shows a real attempt.

TNSTAAFL.

OK, I know "LOL", "GIGO", and "IIRC", but what the blazes does that mean?
 
Tom Mattson said:
OK, I know "LOL", "GIGO", and "IIRC", but what the blazes does that mean?
For non-sci-fi enthusiasts, it means: "there's no such thing as a free lunch".

AM
 

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