Recent content by Praestrigiator

Hmm, so I'm SoL when it comes to predicting the effectiveness of my acetone heat rejector? I love the 'build it and hope for the best' method of engineering. It's my favorite.

Does the amount of one solute in a solution effect the maximum quantity of another solute that can be dissolved ino that solution, or the rate of dissolution? To provide context: I'm thinking of making an acetone evaporator for thermal management purposes. I'm wondering if the humidity of the...

Mpge (properly written MPGe) Is miles per gallon electrical. Which means the amount of energy contained in 1 gallon of gasoline, in electrical form, approx 33.7 kWh.

With coal its no contest, the petrol car is better. It honestly can't even compare Coal is something like C137H97O9NS Meanwhile, gasoline is primarily hexane, heptane, and octane. So C6-8Hlike 16 or something And actually, hydrogen oxidation is more exothermic than carbon oxidation, so petrol...

Does methane gravitationally differentiate in air, or does fluid dynamics mess things up & make it mix in with the air?

It depends on which fossil fuel is used and the overall mixture, and the specific plant. Gas cars generally get get around 25 mpg However, a tesla gets ~95 mpge (miles per gallon of gasoline equivalent) Car engines also have a thermal efficiency of roughly 25%, meaning 25% of the energy...

I'm interested, is there anything that I can eat that would be endothermic when digested? Preferably that also wouldn't kill me were I to eat it.

I can't believe I missed something that should've been so obvious C2H6O2 + 4(Na) → C2H4 + 2(Na2O) + H2 Perhaps I should do this only with professional oversight, because I very well could've exploded if I had done this reaction as I had planned.

Yeah, maybe I should take this to school and get help from my former Chem teacher to do this, I'm fairly certain I could do it, but since you're both warning me I should probably do this with a professional.

Metallic sodium is fairly easy to acquire I've done plenty of chemistry before, I'm adept at certain aspects of it, I know lab protocol, the reason I am asking is because you made a fairly declarative statement that the reaction would not go as I had planned.

I am not old enough to purchase Ethanol legally, so while this method of preparation seems easy enough, it is not suitable for my situation.

I couldn't find a place to buy it. What will I get then? Is there some other part of ethylene glycol that would react with the Na sooner than the hydroxyl group?

I'm trying to get a hold of Ethylene, but because of it's properties it's not sold commercially, so I'm trying to find a way to synthesize it. The closest thing I can find to synthesize it is Ethylene glycol I'm pretty sure I could add Na as so C2H6O2 + 2Na → 2(CH2) + 2(NaOH) The problem is then...

Yeah, that's what M1 and M2 mean here, but other than that and how I bungled the wording, it is correct?

You two are right, I messed up my wording. It is indeed, the Potential energy that would be gained by moving from r to (r+100,000) or the Kinetic energy gained (Potential energy lost) by falling in the opposite direction