November 25, 2024, 08:29:01 AM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: Why are gas leaks from a pressurised gas cylinder cold?  (Read 3185 times)

0 Members and 2 Guests are viewing this topic.

Offline Neverquit

  • Regular Member
  • ***
  • Posts: 27
  • Mole Snacks: +0/-0
Why are gas leaks from a pressurised gas cylinder cold?
« on: September 06, 2010, 09:01:02 AM »
Hi can someone please let me know why a gas leak from a pressurised cylinder is cold?
I think it has something to do with endothermic reactions. Is this correct?
Or is it do do with Kinetic theory?
Thanks in advance.
Logged

Offline Dan

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 4716
  • Mole Snacks: +469/-72
  • Gender: Male
  • Organic Chemist
    • My research
Re: Why are gas leaks from a pressurised gas cylinder cold?
« Reply #1 on: September 08, 2010, 04:40:40 AM »
Quote from: Neverquit on September 06, 2010, 09:01:02 AM
I think it has something to do with endothermic reactions. Is this correct?

Yes, that's a good starting point. Within the cylinder the pressurised gas is a liquid, what happens to it when it leaks out of the pressurised container? Why is this endothermic?
Logged
My research: Google Scholar and Researchgate

Offline MrTeo

  • Chemist
  • Full Member
  • *
  • Posts: 312
  • Mole Snacks: +31/-9
  • Gender: Male
Re: Why are gas leaks from a pressurised gas cylinder cold?
« Reply #2 on: September 08, 2010, 05:45:47 AM »
Quote from: Neverquit on September 06, 2010, 09:01:02 AM
I think it has something to do with endothermic reactions. Is this correct?

As Dan wrote it's true that it is endothermic but it isn't a reaction (I suppose you meant a chemical reaction), only a physical change...
Logged
The way of the superior man may be compared to what takes place in traveling, when to go to a distance we must first traverse the space that is near, and in ascending a height, when we must begin from the lower ground. (Confucius)
Pages: [1]   Go Up
« previous next »
Sponsored Links