2006-08-12 21:10:32 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
The coldest temperature at which any solid can be maintained is at a temperature known as absolute zero. In sciences, where temperature is measured in Kelvin, absolute zero takes the value of zero Kelvin. It is approximately -459.67 °F on the Fahrenheit and exactly -273.15 °C on the Celsius scale.
As heat is due to the vibration of particles in a solid, absolute zero correspond to a temperature where all molecules cease motion, i.e., stationary. The sum of kinetic energy of all the particles in the solid is zero and no amount of heat can be further extracted from the solid. Any substances will be at the solid phrase when its temperature is at absolute zero.
Scientists have made great advancements in achieving temperatures ever closer to absolute zero (where matter exhibits odd quantum effects). In 1994 the NIST achieved a record cold temperature of 700 nK (billionths of a kelvin). In 2003, researchers at MIT eclipsed this with a new record of 450 pK (0.45 nK).
2006-08-13 00:59:55 · answer #1 · answered by grace168574 2 · 1⤊ 0⤋
well check ur question
what do u want to ask/?????
coldest solids well try dry ice or
helium
2006-08-13 05:48:44 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Glaciers...
2006-08-13 04:16:05 · answer #3 · answered by Anonymous · 0⤊ 0⤋
dry ice
2006-08-13 04:12:18 · answer #4 · answered by mominshoe 5 · 0⤊ 0⤋
i believe helium has the lowest freezing temperature.
2006-08-13 04:12:09 · answer #5 · answered by Kyle M 6 · 0⤊ 0⤋
ice
2006-08-13 04:13:13 · answer #6 · answered by Anonymous · 0⤊ 0⤋
igneous rocks...
2006-08-13 08:01:05 · answer #7 · answered by babloo 3 · 0⤊ 0⤋