To take a substance below 0°C, it typically requires reducing the temperature below the freezing point of water. This can be achieved through cooling methods such as refrigeration, using ice, or employing cryogenic techniques. Additionally, factors like pressure changes and the specific properties of the substance (e.g., its freezing point) can influence how it behaves at low temperatures.
Below permafrost is below freezing temperature (0c)
Where air planes fly, the temperature is below freezing.
Blizzard
Examples: wolfram (3422 0C), rhenium (3186 0C), osmium (3033 0C), tantalum (3017 0C).
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Below permafrost is below freezing temperature (0c)
By heating above 100 0C (at standard pressure) or by freezing below 0 0C.
Where air planes fly, the temperature is below freezing.
A liqued turns to ice when it freezes below a temperature of 0C( or 32F )
Blizzard
Salt is effective to temperatures of 20 degrees at which it takes 20 minutes to begin melting the snow. Below 10 degrees its useless by itself. They usually mix it with calcium chloride and this enables to use it to temperatures well below zero. It can be effective at temps of -40 to -50 degrees. The sea water freeze at approx. 28 degrees Fahrenheit (between -2 0C and -3 0C). The freezing point of salted water (with NaCl) depends on the concentration of the sodium chloride. The minimal temperature possible (-21,1 0C) is at a concentration of 23,3 % NaCl.
Melting point: -114 0C Boiling point: 78 0C Density: 0,78945 g/cm3 at 20 0C Refractive index: 1,361 Viscosity: 0,0012 Pa.s For other properties see the link below.
For what? Industrial processes in general operate from way below 0C to thousands of degrees C
Oxygen is liquid at a temperature between -218,79 0C and -182,95 0C.
Examples: wolfram (3422 0C), rhenium (3186 0C), osmium (3033 0C), tantalum (3017 0C).
Blood contains some dissolved salts, which lower the freezing point.
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