mol is the amount of .. stuff. It's the number of molecules divided by
a big enough number to make it manageable.
But they say that there are 2781.6 liters available, but my point is that at 30m would this not be 695.4 litres?
They're not asking how much air is available once the bubbles reach the surface, but how much is available at 30m. That's 600-whatever. The amount (in mol) is the same, but the volume (in L) is lower. But I'm afraid I don't know what it is they actually meant.
Note that in Barry's question they avoid any ambiguity by specifying "free gas volume".
I disagree with some people here in that the interstage pressure is irrelevant
D*mn!
Stewie strikes again!
Thanks
Is the interstage pressure stuff coming back from the days where unbalanced first stages made it, like, really hard to get it?
Most here are way overcomplicating the question.
Can't imagine what you mean
To answer the question (simply, but with much reduced marks) ... How much air is available to a diver ....?... perhaps the simple answer is - as much as he had in the first place bar the ambient pressure.
I assume the idea is to have the candidates demonstrate competence with the gas laws they'll teach trainee. I still feel there's something .. not right with implying you can get more than 2 digits of precision from this stuff, the stuff in the course, that is, or ignoring a couple of equally valid corrections, then docking points if the candidate ignores the wrong one - if (if) that's what happens.
42
Cheers,
Matthieu
