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Groups > sci.physics > #680537
| From | Odd Bodkin <bodkinodd@gmail.com> |
|---|---|
| Newsgroups | sci.physics |
| Subject | Re: Prochak stupidity |
| Date | 2018-04-09 23:18 +0000 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <pagsc6$3et$2@gioia.aioe.org> (permalink) |
| References | (7 earlier) <48666f34-c26d-410b-b36d-16f4d9b8a9fd@googlegroups.com> <pa0pft$1nro$1@gioia.aioe.org> <f9d5f43a-89df-42fd-811c-a57459915dc8@googlegroups.com> <48d23447-102a-40d3-9bad-4feb99b58f83@googlegroups.com> <3473980e-8277-4479-a2c5-f9c388bdc808@googlegroups.com> |
James McGinn <jimmcginn9@gmail.com> wrote: > On Monday, April 9, 2018 at 3:34:03 PM UTC-7, Steve BH wrote: >> On Sunday, April 8, 2018 at 9:48:53 PM UTC-7, James McGinn wrote: >>> On Tuesday, April 3, 2018 at 1:51:14 PM UTC-7, Sergio wrote: >>>> On 4/3/2018 12:09 AM, Steve BH wrote: >>>>> On Sunday, April 1, 2018 at 5:25:36 AM UTC-7, James McGinn wrote: >>>>>> On Saturday, March 31, 2018 at 9:26:43 PM UTC-7, Steve BH wrote: >>>>>>> On Saturday, March 31, 2018 at 6:39:55 PM UTC-7, James McGinn wrote: >>>>>>>> On Saturday, March 31, 2018 at 1:07:59 AM UTC-7, Steve BH wrote: >>>>>>>>> On Friday, March 30, 2018 at 11:02:08 PM UTC-7, James McGinn wrote: >>>>>>>>> >>>>>>>>>> So, why do you think they distinguish between "vapor" pressure and gas pressure? >>>>>>>>> >>>>>>>>> Often vapor pressures are used as terms for the special partial >>>>>>>>> pressures of gases that are in equilibrium with another phase, >>>>>>>>> whereas in the generic term of "partial pressure" of a gas, it >>>>>>>>> can be anything (no other phase or equilibration is implied). So >>>>>>>>> the term "vapor" implies a history, and also another phase that >>>>>>>>> drives it, as an equilibrium partial pressure from phase change. >>>>>>>>> >>>>>>>>> Thus the partial pressure of water gas above liquid at 96.7 C is >>>>>>>>> 0.9 atm. We call this special partial pressure a "vapor pressure" >>>>>>>>> because it's in equilibrium with water and has (once been) liquid >>>>>>>>> water. BUT IT IS A GAS NOW. Of course you can have partial >>>>>>>>> pressure of H2O gas as anything LESS than this, without >>>>>>>>> condensation. That's not properly a vapor pressure, but just a partial pressure. >>>>>>>>> >>>>>>>>> So not all partial pressures are vapor pressures, but all vapor >>>>>>>>> pressures are partial pressures. They are equilibrium partial >>>>>>>>> pressures. One is a subset of the other. However, they are both >>>>>>>>> taking about the pressure of gas molecules. >>>>>>>>> >>>>>>>>> Now you calculate the density of water GAS in equilibrium above >>>>>>>>> liquid at 90 C. Congrats, that IS the vapor pressure. It's a >>>>>>>>> special gas partial pressure from another phase. >>>>>>>>> >>>>>>>>> Go ahead-- show us your math. Or look it up in a table. Any vapor >>>>>>>>> pressure implies a DENSITY (moles per volume) which then can >>>>>>>>> easily be converted to a molecular weight. Use some vapor >>>>>>>>> pressures (I don't care where you get them) to calculate some >>>>>>>>> molecular weights. Are these the weights of gas molecules or >>>>>>>>> something larger? Show me your numbers. >>>>>>>> >>>>>>>> Can you find any direct quotes from the literature that supports any of this? >>>>>>> >>>>>>> https://www.chemguide.co.uk/physical/phaseeqia/phasediags.html >>>>>> >>>>>> Relevance? >>>>> >>>>> Try reading it. >>>>> >>>> >>>> from the article; >>>> >>>> "So, again, what is the significance of this line separating the two areas? >>>> >>>> Anywhere along this line, there will be an equilibrium between the >>>> liquid and the vapour." >>> >>> So, you retards believe that this sentence proves the existence of "cold steam?" >>> >>> So, let me get this straight, your "evidence" is a sentence that refers >>> to a line on the H2O phase diagram? >>> >>> It's too bad you couldn't provide qny empirical evidence, huh. >> >> >> I gave you the vapor densities from steam tables, including vapor below >> 100 C. That is the empirical evidence. You said "so what"? I pointed out >> from density (mass per volume) and the gas laws (particles per volume) >> you can calculate particle mass for any gas (hydrogen, helium, argon), >> and in steam or water vapor at ANY temperature, this turns out to be the >> mass of the water molecule. You said so what? >> >> So the gas is water molecules, is what. Nothing larger. > > You aren't even beginning to make sense. > Yes he is. No, what’s true is that you are impenetrably dense. Somehow you blame others for your own flaws. -- Odd Bodkin -- maker of fine toys, tools, tables
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Re: Prochak stupidity James McGinn <jimmcginn9@gmail.com> - 2018-04-08 21:48 -0700
Re: Prochak stupidity Steve BH <sbharris@gmail.com> - 2018-04-09 15:33 -0700
Re: Prochak stupidity James McGinn <jimmcginn9@gmail.com> - 2018-04-09 15:53 -0700
Re: Prochak stupidity Odd Bodkin <bodkinodd@gmail.com> - 2018-04-09 23:18 +0000
Re: Prochak stupidity James McGinn <jimmcginn9@gmail.com> - 2018-04-10 12:03 -0700
Re: Prochak stupidity Odd Bodkin <bodkinodd@gmail.com> - 2018-04-10 19:59 +0000
Re: Prochak stupidity James McGinn <jimmcginn9@gmail.com> - 2018-04-10 13:26 -0700
Re: Prochak stupidity Odd Bodkin <bodkinodd@gmail.com> - 2018-04-10 21:05 +0000
Re: Prochak stupidity James McGinn <jimmcginn9@gmail.com> - 2018-04-10 14:28 -0700
Re: Prochak stupidity Odd Bodkin <bodkinodd@gmail.com> - 2018-04-10 22:55 +0000
Re: Prochak stupidity James McGinn <jimmcginn9@gmail.com> - 2018-04-10 16:16 -0700
Re: Prochak stupidity Odd Bodkin <bodkinodd@gmail.com> - 2018-04-10 23:31 +0000
Re: Prochak stupidity James McGinn <jimmcginn9@gmail.com> - 2018-04-10 16:41 -0700
Re: Prochak stupidity Steve BH <sbharris@gmail.com> - 2018-04-09 17:30 -0700
Re: Prochak stupidity James McGinn <jimmcginn9@gmail.com> - 2018-04-10 11:56 -0700
Re: Prochak stupidity pnalsing@gmail.com - 2018-04-09 20:16 -0700
Re: Prochak stupidity James McGinn <jimmcginn9@gmail.com> - 2018-04-10 11:57 -0700
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