why do we need to know what absolute zero with. why can't we just work with celcius and fahrenheit?
125624
Absolute zero is important because it is very likely to be the lowest temperate possible, and is most likely unobtainable. Knowing it is useful because it makes calculations involving temperature simple to deal with. Personally I wouldn't want to try anything like quantum thermodynamics using celcius or fahrenheit because the temperatures below zero would most likely turn out to be a lot tougher to deal with.
288355
no...it cant get colder than absolute zero....thats why its called absolute....molecules dont move forward or backward ....you should think of them as energy particles....electrons dont really move around a nucleus either....dont think of them as planets around the sun they are more like energy fields.  the more negative the charge the more "electrons"....if there is any movement....even if it were possible to move backwards it would be warmer....movement causes friction and, therefore, heat.  it you cant get less than nothing.
444036
Because the Kelvin scale starts at absolute zero (-273*C), where all motion ceases and entropy is zero.  All 'action' takes place ABOVE this state of inactivity.\n\nSo proportionality from 0*K is more meaningful...it's always best to start at the start, isn't it?  :-))
389673
You asked this question twice, and I posted a detailed solution in answer to your other question.  I know your teacher's answer is 49 degrees, but if you go to the nearest tenth of a degree, 48.9 is a better answer.
21629
Absolute Fahrenheit is used to calculate air weights at different temperatures.  It is the number of degrees above Absolute Zero, which is around minus 460 degrees Fahrenheit.  As prime example, 48 Fahrenheit is the same as 508 Absolute Fahrenheit, and 175 degrees Fahrenheit is the same as 635 Absolute Fahrenheit. \n\n    At 48 F (508 A) a cubic foot of normal pressure sea level air weighs almost exactly 1 1/4 ounces.  Heated by 127 degrees,  to 175 F (635 A), it weighs almost exactly an ounce, or 4/5 of its original weight, for a gross lift of a 1/4 ounce per cubic foot.
379960
if its 98.6 outside, our body temperature will rise, causing us to sweat and dehydrate.\n\nWe need the temperature to be about 70 degrees to stay at a steady 98.6.\n\nWe need the outside temperature to be less than the body's temperature as the body's chemical reactions produce too much heat, so some heat needs to be lost.
103339
of your choices, the one "no heat engine can be 100% efficient" is most correct, isn't it? But doesn't it primarily derive from second law, and the third law is that "absolute zero" is unattainable? [though in a tiny space, the University of Florida is testing a theory that a random tiny state would be possible, at "no motion", hence, absolute zero]
496759
You've got your Farenheit mixed up with your Celsius.\nBody temperature is measured in Farenheit degrees.\nAll those other hot things you wanna touch (but can't) are measured in Celsius degrees.\nThey're 2 different measurements of heat.\nThat pot of boiling water on your stove is 100 degrees Celsius,but it's also 212 degrees Farenheit.\nYou might be running a high fever at 100 degrees,but you won't be boiling water by setting a pot on your forehead.\nYou might also be confused when you hear the weather report.32 degrees is freezing when you're talking Farenheit.0 degrees is freezing if you're talking Celsius.
497318
Temperature is temperature no matter what elevation or altitude you are at - no need to know it.\n\nIf you want to correct station pressure readings to sea level for a weather station, then it may be helpful. The most practical and a reasonably accurate method though is to simply set your barometer several times (making small adjustments) to the sea level pressure using data from a good surface chart during daytime on a nice day with a weak pressure gradient (when it'll be very similar over tens of miles). Here is a good site for observations the past hour:\n\nhttp://www-frd.fsl.noaa.gov/mab/metar\n\nThey say data are experimental and not always accurate blah blah blah - but I never saw an error in METAR listings for any of the stations nor their locations - though you have to be able to read METAR reports. E-mail me if you wish regarding this.\n\nWhatever the case, Topozone is good if you want your elevation for any particular reason:\n\nhttp://www.topozone.com
322109
Considering you said 0 degrees without specifying Fahrenheit or Celcius, it seems you don't know much about science.  If the compounds are "no longer active on the molecular level" you're talking about 0 Kelvins, which are not degrees.  There's no such thing as zero degrees Kelvin.  I don't see why you're convinced that electricity would make any difference.  Put simply, the answer to your question is currently No.  Maybe someday we can have some sort of hibernation, but it will probably include hormones or something, not just zapping you.
515463
All decent explanations so far; I hope I can add to what has already been posted.\n\nLiquid and Ice most definitely can exist at the same temperature and Ice can be and often does get colder than 0C.\n \nFirst of all the Triple Point of water is the pressure and temperature at which Ice, Liquid Water and Water Vapor exist at the same time in equilibrium.  Vapor is the right word, not steam although you can argue that the only time that Water Vapor and Steam are the same thing is at a very low pressure.  The Triple point of water only happens at a near perfect vacuum, 0.0063 ATM to be precise.\n\nAdding Salt to water will lower the freezing point, but then it isn't water anymore, it's salt water.  Even so, Liquid Salt Water and Ice Salt Water can also exist at the same place and time at the same temperature, slightly below 0C.  But let's stick to water.\n\nIce can easily be lower than 0 degrees.  Consider a bucket of water, liquid water sitting outside and the air temperature is -10C.  Little by Little, as the liquid reaches 0.0098 C, liquid starts to become ice.  The ice crystals form in the bucket, around the walls of the bucket and on the surface first.  The air is still -10C so the bucket, the liquid and the ice will keep getting colder.  The ice on the surface will drop to slightly below 0C but very slowly since it is still absorbing the heat of the not-yet-frozen water.  Eventually, the entire bucket of water will be frozen and will be just below 0C.  First the walls of the bucket will reach -10C (same as the air tempertaure).  The ice near the walls of the bucket and on the surface will reach -10C first, continually absorbing the heat energy from the relatively warmer ice near the center of the bucket.  Until finally, the entire bucket of ice is steady at -10C.  That is until the sun comes out or the day gets warmer.\n\n\nAnd by the Way, dry ice is not water, it's frozen CO2 (Carbon Dioxide)\n\nOne more thing, at a near perfect vacuum, you can actually cool liquid water to less than 0C without it freezing.  Never tried that but I did accidently freeze a beer last night...
218908
first, 1 degree celcius is NOT 32 degrees fahrenheit. ZERO degrees celcius is 32 degrees fahrenheit, but niether here nor there....\n\nnth term will be \n\n(n) + (n-1) + 31. \n\nso if its the first term, then\n(1) + (0) + (31) = 32.....or for the 2nd\n(2) + (2-1) + (31) = 34\n(3) + (3-1) + (31) = 36\n(4) + (4-1) + (31) = 38  .....  and so on. \n\nso for the "42nd" term\n\n(42) + (42-1) + (31) = 114\n\nso for the Nth term\n\n(N) + (N-1) + (31) = .....
28176
Temoperature wise, Absolute zero is 0 degree Kelvin, which is -273 degree Centigrade.  How high is up is relative to what you are asking.  If it is 1 degree Kelvin it is "up" from absolute zero, but it is still damned cold.
552377
Celsius is the world meteorological standard.  Kelvins are the scientific standard.  Fahrenheit is a non-standard and archaic unit used by Americans only.
581612
Given the answer you are trying to work towards, the ideal gas law is sufficient. But beware, in reality, the ideal gas law is accurate only at low pressures (not far from 1 atm). That said, it is a simple matter of algebra at this point:\n\n        T=(P*V)/(n*R)    with    R=0.0821 L*atm*mol^-1*K^-1\nNote that your answer is in degrees Kelvin and the required value in celcius would be degrees Kelvin minus 273.15
337387
To map [32, 212] onto [0, 100], use Theta(x) = [(100-0)/(212-32)][x-32], or Theta(x)=5/9(x-32).  As you may know, this is the formual to convert Fahrenheit to Celsius.
39520
Use a calculator, add all three together (be sure to include the negatives) and then multiply by the number of temperatures.