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"Absolute zero" (Zero Kelvin) is a theoretical temperature, at which all atomic motion stops. This temperature can't be reached in practice, but we can get very close. Laboratories on Earth have reached temperatures of less than a microKelvin (millionth of Kelvin, or millionth of a degree from absolute zero). In outer space, it usually doesn't get much colder than about 3 Kelvin, because of a background radiation equivalent to that temperature.
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What is the temperature at which all molecular motion stops?
This is called absolute zero. The temperature is 0 Kelvin or -273.15 degrees Celsius.
How did Kelvin calculate absolute zero?
This is just the rough answer, as I am looking for more details myself... but Kelvin was trying to discover at what temperature the ideal gases turned to liquid (He, H, etc), and he then used those numbers to plot a line that supposedly gave him the temperature that would mean there was no 'energy' left in a substance, and thus be as cold as it cold possibly be. There are flaws to his theory, but it is called Kelvin because of him. Keep in mind that it is likely that there are temperatures colder than 'absolute zero'... currently they are called 'negative temperatures'. Some people postulate that below a certain temperature that the matter would actually contain *more* energy than at a relative 'absolute zero', and if both of those turn out to be 'facts' then pretty much the whole idea of 'absolute zero' is blown out of the water 'so to speak'. Nova has a great special called Absolute Zero that you can rent from Netflix that tells about the history of 'cold'. I recommend it to anyone interested in this topic.
Point where all molecules stop moving?
The point where all molecules stop moving, in theory, is absolute zero.
What is the lowest temperature that any substance can reach it?
-273 degrees celsius is considered absolute zero, meaning that -273 degrees celsius (or 0 kelvin) is the lowest possible temperature.
Is there evidence that suggest that matter is in constant motion?
Yes, molecules are constantly vibrating due to heat, absolute zero is when they stop vibrating, absolute zero is zero in Kelvin which is -459.7 F and -273.15 C
Is absolute zero is equal to -273 degrees on the Kelvin scale?
Kelvin is defined in such a way that absolute zero is zero Kelvin.Kelvin is defined in such a way that absolute zero is zero Kelvin.Kelvin is defined in such a way that absolute zero is zero Kelvin.Kelvin is defined in such a way that absolute zero is zero Kelvin.
Did they reach absolute zero on Pluto?
Although very cold, Pluto is still a few degrees off absolute zero. Zero kelvin is absolute zero, Plutos minimum reaches around 33 kelvin, 33 degrees above absolute zero.
What is the absolute zero on the Kelvin scale?
zero Kelvin.
How cold is absolute zero in Celsius?
Absolute zero is -273.15 degrees Celsius and -459.7 degrees Fahrenheit. Kelvin = degrees Celsius + 273.15
What is the zero on the Kelvin scale?
It is Absolute Zero. On the Kelvin scale there are no negative numbers...so therefore absolute zero on the kelvin scale is zero. All we might add is that absolute zero is --273.15 degrees C.
What is the difference between kelvin and absolute kelvin?
Kelvin is the absolute temperature - a temperature where absolute zero, the lowest temperature possible, is defined as zero. Therefore, in the phrase "absolute Kelvin", the word "absolute" seems redundant.
Is zero degrees Kelvin absolute temperature?
It is absolute zero.
Celsius to kelvin formula?
The Kelvin scale is zero at Absolute Zero ! Absolute Zero is -273C, hence add the Celsius figure to 273 to get the Kelvin figure
What is the special name for zero degree Kelvin?
Absolute zero.
What is absolute zero Celsius?
Absolute zero (zero kelvin) is -273.15 C
Does temperature have a base unit?
The SI base unit for temperature is Kelvin. This is determined by the absolute zero of a substance.
Can nothing get colder than 0 k?
No,0 Kelvin is absolute zero,cold as anything can get.
