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Water freezes at 0 degrees centigrade.

Electrons begin to slow down and finally stop moving as temperature reaches 0 degrees absolute or Kelvin/Rankin.

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Q: What is special when the temperature approaches 0 degree?
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What is standard temperature?

The standard temperature is 0 degree Celsius.


At what temperature does water freeze and turn into ice?

32 degrees Fahrenheit 0 degrees Celsius


How effective would rennin be at 0 degree celsius?

Rennin is very ineffective at 0 degrees. Its optimum temperature which it works in is body temperature (37oC). If the enzyme is heated up to 70 degrees then it will denature and have no effects at all.


Does molecular motion ever stop?

At a molecular level, molecules will always vibrate to some degree. This vibration causes what is known as Brownian motion and molecular vibrations cause bumps and collisions against other molecules which result in random motion, much like how vibrators may bounce of one another when in contact and vibrating. Why molecules will always vibrate is due to the laws of thermodynamics. Only at absolute zero (0 K) will a molecule cease to vibrate. However, absolute zero can never be achieved artificially, though it is possible to reach temperatures close to it through the use of cryocoolers. This is the same principle that ensures no machine can be 100% efficient. Laser cooling is another technique used to take temperatures to within a billionth of a degree of 0 K. At temperatures near 0 K, nearly all molecular motion ceases and ΔS = 0 for any adiabatic process. Pure substances can (ideally) form perfect crystals as Temperature approaches 0. Max Planck's strong form of the third law of thermodynamics states the entropy of a perfect crystal vanishes at absolute zero. The original Nernst heat theorem makes the weaker and less controversial claim that the entropy change for any isothermal process approaches zero as Temperature approaches 0. The implication is that the entropy of a perfect crystal simply approaches a constant value. The Nernst postulate identifies the isotherm T = 0 as coincident with the adiabat S = 0, although other isotherms and adiabats are distinct. As no two adiabats intersect, no other adiabat can intersect the T = 0 isotherm. Consequently no adiabatic process initiated at nonzero temperature can lead to zero temperature. In other words, it is impossible by any procedure to reduce the temperature of a system to zero in a finite number of operations. Therefore molecules will alwyas be moving due to the impossibility to drive the temperature down to 0 K, which if it were possible would stop movement entirely.


What temperature shows water in solid state?

Water turns into a solid when it freezes. It does this at 32 degrees Fahrenheit and 0 degree Celsius.