azcoyote Posted September 18, 2006 Share Posted September 18, 2006 [quote name='Scalliwag']what really doesn't make sense about it to me is that you are defeating the initial purpose that the shisha needs to get hot while in the bowl in order to smoke. Anything cool at that point would require more heat to offset the coolness of the bowl. So even if you could keep the bowl cool it would be inefficient. the smoke has more than enough opportunity to be cooled however much you desire within the vase. Seems like it is a novelty more than functional to me.[/quote] Agreed! Link to comment Share on other sites More sharing options...
SanguineSolitude Posted September 18, 2006 Share Posted September 18, 2006 did majeth just suggest nitroglycerine in the hookah? I think(hope) you meant liquid nitrogen (still a bad idea but less bang for your buck.)i think we can safely agree that the clay ice bowl is a bad idea. Link to comment Share on other sites More sharing options...
Sonthert Posted September 18, 2006 Share Posted September 18, 2006 Anybody else on the what temperature does salt water freeze?Nobody right yet. Link to comment Share on other sites More sharing options...
EvansLight Posted September 18, 2006 Share Posted September 18, 2006 well depends tang, been a while since ive done ma chemistry, but normal ocean, about 27F if i remember right. i could be a degree or two off. Link to comment Share on other sites More sharing options...
Sonthert Posted September 18, 2006 Share Posted September 18, 2006 Nope. Do I need to offer a free 250g of Tangiers for the right answer? OK...one 250g of Tangiers for the right answer. There's an answer and a reason why its that temperature, the explanation would be extra credit, something else, I don't know. Please all guesses in C or F, too...242 is a wild guess. 242F is a real guess. Neither are right, though. Read the question again...what temperature does salt water freeze at? Link to comment Share on other sites More sharing options...
yashman19 Posted September 18, 2006 Share Posted September 18, 2006 The freezing temperature of salt water depends on how much salt you put in. Oceanographers define the "salinity" of water as the number of grams of salt per 1000 grams of water. (Since 1000 grams of water is almost exactly 1 liter, it's also grams of salt per liter). Here's a table which gives the freezing point of water at a number of different salinities: S(g/kg) 0 10 20 24.7 30 35 T(freezing) © 0 -0.5 -1.08 -1.33 -1.63 -1.91 Away from rivers and glaciers, the ocean has a salinity of about 35. The Atlantic is about 1 salinity units saltier than the Pacific. So ocean water freezes at about -1.91 degrees C. Link to comment Share on other sites More sharing options...
EvansLight Posted September 18, 2006 Share Posted September 18, 2006 well what percentage of salt and water? as i said average ocean water is only around 3-4% salt if remeber right, which means its decreased to around -2C, but for more, lets say 20% solution is decreased to around -15c if im doing the formula right, but i havent done chemistry in years, so give me a degree or two Link to comment Share on other sites More sharing options...
frontmanpb101 Posted September 18, 2006 Share Posted September 18, 2006 Ocean water with a typical salinity of 35 parts per thousand freezes only at −1.8°C (28.9°F)explanation from what google gave me: [url="http://www.waterencyclopedia.com/Re-St/Sea-Water-Freezing-of.html"]http://www.waterencyclopedia.com/Re-St/Sea...reezing-of.html[/url] Link to comment Share on other sites More sharing options...
EvansLight Posted September 18, 2006 Share Posted September 18, 2006 lmao im a degree and some change off cause i tried to work it out using the forumla, u bloody google searchers u!! Link to comment Share on other sites More sharing options...
frontmanpb101 Posted September 18, 2006 Share Posted September 18, 2006 def. props to you Evans!but i've never won shisha...and i have to go to work now ... lol. Link to comment Share on other sites More sharing options...
yashman19 Posted September 18, 2006 Share Posted September 18, 2006 [quote name='EvansLight']lmao im a degree and some change off cause i tried to work it out using the forumla, u bloody google searchers u!![/quote] Hey don't hate, google is all I got. What do you expect from a bloddy business major [b]Edit[/b] because I don't want you to think I was serious either, just lolligagin Link to comment Share on other sites More sharing options...
EvansLight Posted September 18, 2006 Share Posted September 18, 2006 lol its all good, i dont want to win anyways, i just got my box from tangiers today, and im very happy Link to comment Share on other sites More sharing options...
ghostofdavid Posted September 18, 2006 Share Posted September 18, 2006 The melting action of salt forms brine, or a strong saline solution, that can penetrate below the surface of ice and packed snow. Brine prevents water from freezing and bonding to a surface. Link to comment Share on other sites More sharing options...
Calcartman Posted September 19, 2006 Share Posted September 19, 2006 I still maintain that with enough salt, saltwater will not freeze; or rather, it will freeze the same time the salt does. EDIT: after some research (i don't know if this is cheating) [url="http://en.wikipedia.org/wiki/Eutectoid"]http://en.wikipedia.org/wiki/Eutectoid[/url] Salt water in 23.3% mixture does indeed freeze when the SALT freezes; at -21.2Celcius.Another site claims -10c. Link to comment Share on other sites More sharing options...
moosepotatoes Posted September 19, 2006 Share Posted September 19, 2006 [url="http://www.mit.edu/~goodmanj/madsci/888588209.Es.r.html"]http://www.mit.edu/~goodmanj/madsci/888588...88209.Es.r.html[/url]there's the cheat website...dont pretend you didnt use onea lot of you did lolso dont think your too smart. Link to comment Share on other sites More sharing options...
Calcartman Posted September 19, 2006 Share Posted September 19, 2006 [quote name='moosepotatoes'][url="http://www.mit.edu/~goodmanj/madsci/888588209.Es.r.html"]http://www.mit.edu/~goodmanj/madsci/888588...88209.Es.r.html[/url] there's the cheat website...dont pretend you didnt use one a lot of you did lolso dont think your too smart.[/quote] I used my own information, except for the websites i cited. Link to comment Share on other sites More sharing options...
Lukasa Posted September 19, 2006 Share Posted September 19, 2006 At what temperature does hell freeze over at? All answers must be given in degrees Celcius or degrees Fahrenheit. It just figures. The one day i decide to ignore the hookah forums, tangiers throws up a sweet contest. Link to comment Share on other sites More sharing options...
Majeth Posted September 19, 2006 Author Share Posted September 19, 2006 [quote name='Tangiers']Trivia question. What temperature does salt water freeze at? You see the ocean freeze when its really cold, but salt makes ice melt...hmm. Background, when I was in school to be an engineer, I always wondered what the answer was, but not a single professor could tell me. I was a junior before I found out and in a non-related lab class. Anybody, what temperature does salt water freeze at?[/quote] Well. If I'm led to believe the things I learn in school, the answer will be that seawater, with 3.5% salt content, frezes at -1.91 C'. But I think that the ice in it self do not have a salt content, just crystylised salt. Let's take NaCl, ye ol' cooking salt. When you mix this this with water NaCl will split up because of the dipolar abilities of water. So... When water freezes the space between the molekules will decrese, and thus squeese out the Na+ and Cl-. These will then atract eachother once again, and make tiny salt crystals. In short: When saltwater freezes, the ice you see is pure water, with some 'pockets' of salt. Link to comment Share on other sites More sharing options...
Sonthert Posted September 19, 2006 Share Posted September 19, 2006 Saturated salt water. Whichever units. Link to comment Share on other sites More sharing options...
Calcartman Posted September 19, 2006 Share Posted September 19, 2006 [quote name='Tangiers']Saturated salt water. Whichever units.[/quote] -273.15C Link to comment Share on other sites More sharing options...
Sonthert Posted September 19, 2006 Share Posted September 19, 2006 No, not zero Kelvin. Link to comment Share on other sites More sharing options...
Majeth Posted September 19, 2006 Author Share Posted September 19, 2006 don't remember much, but I think that it freezes when it comes down below 21.1 C'. (One of those things that just stick with me, dunno why)(But if you manage to get close to 0 K' that should pretty much do the trick ^^) Link to comment Share on other sites More sharing options...
ZAP Posted September 19, 2006 Share Posted September 19, 2006 0c? Link to comment Share on other sites More sharing options...
EvansLight Posted September 19, 2006 Share Posted September 19, 2006 [quote name='Majeth']don't remember much, but I think that it freezes when it comes down below 21.1 C'. (One of those things that just stick with me, dunno why) (But if you manage to get close to 0 K' that should pretty much do the trick ^^)[/quote] well unless tangiers is doing a trick question yup that should be it. i dont know really for sure if i got the forumla right then it is, but i could have the amount of saltwater wrong in the equation :DOh and for those still thinking that im googling, heres the formula for ya. Its worked out almost all the way, didnt feel like finishing it. i start by figuring out the molality of NaCl in a 23.3% solution of NaCl and H205.82g of NaCl to 25.00g of H2O5.82g NaCl = 0.09959 mole NaCl (rounded up)0.09959 / 0.02500 kg solvent = 3.9836m NaClT = Kf(m)(i)T = 1.86(3.9836m)(2)as i said i aint quite sure if i got the forumla perfect, i was going half off memory and half of finidng the T = Kf(m)(i) forumla online, so i didnt set myself up wrong. Chem was one of my only classes i liked in high school Link to comment Share on other sites More sharing options...
ghostofdavid Posted September 19, 2006 Share Posted September 19, 2006 Dudes, face it, I won! Link to comment Share on other sites More sharing options...
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