Recent content by skaai

It's all about equilibrium (or not) Thanks for the good ideas, Simon. The first few seconds after a bottle is vigorously shaken: A state of NON-equilibrium: I posit that the ACS, and most other folks' argument for "no pressure change" rests on the system being in a state of equilibrium...

[SIZE="1"]Before submitting this thread for deletion (claiming it's been asked a jillion times before and answered definitively), please read my question thoroughly. I tried my best to find a proper answer and will cite what I found, but in the end, these answers were "lacking"... I know that...

I see your point about carbonic acid... it's so mysterious, but all we can do is like with dark matter... infer its there from the effects... thanks so much for the once-over!

OK folks, [SIZE="1"]first of all, let me thank those of you who have helped me with previous questions... perhaps this is why I keep coming back! This time, I'm just asking those of you who are better than I am at this if I did this right and thus, got the correct result. I think I did...

If I get it, the atmosphere in the lung would be 1atm like it is outside the lung, so the water vapor pressure simply insinuates itself into the equation without increasing pressure, so whatever pressure it takes up, the rest of the gases will have a smaller share. as for why the partial...

hello folks, [SIZE="1"]let me apologize if this was addressed before, but every time I try to search for partial pressure of oxygen and water, I get problems unrelated to mine. I also searched Wikipedia and Google and found their explanations a bit too obtuse. But it's possible I'm just doing...

Yes, there is an error in Purdue's math, and maybe the book is right? first of all, thank you so much Borek, I recalculated and realized there WAS an error... I can't believe I missed it the first time around! it seems the dissolution of oxygen in water turns out to be 16% of the amount...

Henry's Law gets us closer, or messes things up worse? Borek, Chestermiller Thank you for your reply, I appreciate that! but I think the Law I forgot to apply was Henry's Law (Pgas=kH·[gas]) For O2 this value is 769.23 \frac{l·atm}{mol}. if we assume PO2=762 mmHg (0.975 atm) the...

ok, something's been bugging me :confused: consider this simple problem: 193 mL or O2 was collected over water with pressure = 762 mmHg at 23°C. How many grams of oxygen were collected? The strategy is simple enough: PT = Po2 + Pwater Poxygen = 741 mmHg →n=\frac{pV}{RT}=7.69x10-4 mol =...

The fact that food is not 100% digestible is a good point. The fact that amino acids are also not completely digested adds to the complications (normally, amino acids in a bomb calorimeter are completely oxidized but in the body, they are not, rather they are oxidized incompletely to urea &...

not even close... 2000 Poortmans: Do regular high protein diets have potential health risks on kidney function in athletes? not in athletes 2005 Martin: Dietary protein intake and renal function not in all other people except those with KIDNEY FAILURE...

Bohm2, first of all, we’re going off-topic here. The original post was why someone who was on a diet and losing weight would stop losing weight when the only thing they changed was their activity level from sedentary to 2/week resistance training. I tried to explain that there are many...

being confused is good... it means you're at least searching for understanding in a sea of information. Keep in mind that the whole debate over "a calorie is a calorie" depends on how you want to frame this statement: biochemically, this rule holds: because it simply states the first law of...

The interaction between macro-nutrients, metabolism (catabolism + anabolism), energy expenditure (REE, TEE, exercise), and hormones is quite fascinating, and I would invite you to read more on it because there is no question that macronutrients affect different folks differently at a molecular...

Before taking a serious look at the why of your body mass dynamics, we need to acknowledge the unknown variables: We don't know your weight: particularly your lean mass and fat mass. Your energy expenditures (resting energy expenditure or REE, activity energy expenditure or AEE, total energy...