how far can it b hot and how far can it be cold?

Question

does the celcius and faranhiet have a limit or does it go on

Answer 1

absolute zero -273 degrees celcius is the coldest that things can supposedly go, zero degrees kelvin, though there is I believe no upper temperature though the core of the sun is though to be approx 15 million degrees celcius

Answer 2

Hi, I think it is -273 degrees centigrade or celcius. This is zero degrees kelvin. The reason things cannot get any colder is this. When things have heat the molecules wobble about. The more heat the more they wobble. As you cool it down they wobble less and less. At -273 degrees centigrade the molecules of a substance stop wobbling completely, therefore you can't have any colder than no heat (movement) at all. Theoretically there is no upper limit to how hot something could get as the molecules can always wobble a bit more.

Answer 3

What we call temperature is simply a measure of the internal kinetic "heat" energy which a substance posseses. If you imagine all the molecules of a substance vibrating and bouncing off each other, the more energetic the bouncing around the hotter the substance.

Obviously this bouncing around can be slowed down to a stop. In this case the temperature is said to be "Absolute Zero":
0°Kelvin, −273.15 °C (−459.67 °F).
http://en.wikipedia.org/wiki/Absolute_zero

As a solid is heated, the strong bonds holding the atoms or molecules together can't take the bouncing around and it melts, becoming a liquid. As it is heated further the bonds break altogether and the molecules fly apart, producing a gas.
http://en.wikipedia.org/wiki/States_of_matter

Heat the gas more and you break up the molecules and atoms into ions or charged particles, producing a plasma:
http://en.wikipedia.org/wiki/Plasma_%28physics%29

Most of the universe is plasma, some quite cool, some incredibly hot. The surface of the sun is 5526°C

Obviously we can't stick a thermometer in the sun and other stars etc, so we use the colour of the light they give off as a way of measuring. (In furnaces a similar trick is used by visually comparing the colour of a heated wire with the colour of the metal or glass being heated.)

There is the fascinating and mind boggling concept of "Negative Temperature", which is involved in some esoteric areas of quantum physics but if you're at high school you won't be expected to know much about this!:
http://en.wikipedia.org/wiki/Negative_temperature

I disagree with the above reply about converting all of the universe's matter to energy as this energy would have to applied to at least one atom to heat it and this would cause it to fly into subatomic particles. Consider what happens in particle accelerators. If you think about it this would actually signify the big bang begining of a new universe.

Although the temperature scales have infinite range, according to Wikipedia:
"1E27K to 1E28 K is the approximate temperature at which the symmetry of Grand Unified Theory is broken. Occurs 1E-35 s after the Big Bang"
1E27K is 1 with 27 zeros after it, degrees Kelvin. One million has six zeros so we are talking about one thousand million million million million degrees Kelvin. Pretty toasty! In fact big bang temperature. If I had to vote for the upper limit of the scale, the state at which the universe ceases to exist would probably be it!

Just as interestingly(!) at 1.9×1E12 K (1 TK, 170 MeV): QCD matter or quark matter undergoes a phase transition from hadrons to a quark-gluon plasma.
http://en.wikipedia.org/wiki/1_E24_K
Now this is much cooler, only 1.9 million million degrees Kelvin, and we're talking about producing the quark gluon soup which is believed to have existed during the first 20 or 30 microseconds after the universe came into existence in the Big Bang.

There is a whole section of Wikipedia which deals with what happens at various temperatures:
http://en.wikipedia.org/wiki/Category:Orders_of_magnitude_%28temperature%29

Hope this helps!

Answer 4

The lower limit of temperature is absolute zero which is -273 degrees celsius or -460 degrees fahrenheit. As for an upper limit on temperature, that is a good question. There probably is an upper limit, but it cannot be calculated specifically.

Answer 5

Absolute zero is -273 degrees centigrade or -459 degrees Farenhiet, for the coldest it can get. My guess to what the hottest it can get is if all the mass in the universe is converted to heat (energy) by mc2 where c2 is the speed of light to the second power and m is the mass of the universe. It is an interesting question.

Answer 6

celcius and faranheit are just scales to measure temperature. Absolute zero is so cold that there can be no thermal energy whatsoever therefore atoms are frozen. At the other end of the scale, when suns explode they create energy of millions of degrees.

Answer 7

Theoretically there is no limit to how hot something can get. -273 degrees C is absolute zero. This is when there is no heat at all. You cannot get colder than that.

Answer 8

the limiting factor is your imagination

Answer 9

omg...brings back memories..

I think it's like kelvin scale..173celcius..omg thats so hot lol..
hotter then us makin luv lmao