So what's the point? Is this something new you just learned in night
classes and want to show off? Seriously, Sullivan is in San Antonio,
Tx. so why don't you figure out how many cups of water vapor his
vanagon contains at 80% humidity.......
Miguel

I have not failed. I've just found 10,000 ways that won't work.
  - Thomas A. Edison

On Mon, Nov 8, 2010 at 2:39 PM, Alistair Bell <albell@shaw.ca> wrote:
> aha! its an opportunity, not to answer question, but to work out just
> how much water vapour is produced by burning the 1 lb bottle of propane.
>
> lets make assumption that no CO is produced, ie the heater is working
> perfectly, and that there are 16 oz to the lb, or 454 g.
>
> combustion equation:
>
> C3H8 + 5O2 ----->  3 CO2  + 4H2O
>
> so we see for every mole of propane burned, we get 4 moles of water.
>
> molecular weight of propane = 44 g/mol
>
> moles per 1 lb bottle = 454/44 = 10.3 moles
>
> therefore burning the entire bottle would produce 4(10.3) = 41.2
> moles of water
>
> molecular weight of water = 18 g/mole
>
> therefore 18(41.2) = 741.6 g of water produced.
>
> almost 3 cups of water into the van in 6 hrs.
>
>
> alistair
>
>
>
>
> On 8-Nov-10, at 12:16 PM, Courtney Hook wrote:
>
> Just hauled out my little Buddy Heater and it claims 6hrs on low with
> a 1 LB cylinder. Has anyone actually ever timed one to see how
> realistic that is? I'm doing it right now, but with a re-filled 1 LB
> cylinder which never seems to refill completely. I'll see what I get.
> Courtney
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++
> Always be yourself, because the people that matter don't mind,
> and the ones who mind, don't matter.
>