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  2. Ice - Wikipedia

    en.wikipedia.org/wiki/Ice

    Ice is still used to cool and preserve food in portable coolers. [110] Ice cubes or crushed ice can be used to cool drinks. As the ice melts, it absorbs heat and keeps the drink near 0 °C (32 °F). [139] Ice can be used as part of an air conditioning system, using battery- or solar-powered fans to blow hot air over the

  3. Phases of ice - Wikipedia

    en.wikipedia.org/wiki/Phases_of_ice

    The curve between ice II and ice V was extremely different, however, with the curve's bubble being essentially a straight line and the volume difference being almost always 0.000 0545 m 3 /kg (1.51 cu in/lb).

  4. Freezing level - Wikipedia

    en.wikipedia.org/wiki/Freezing_level

    The 0 °C isotherm under normal conditions. The freezing level, or 0 °C (zero-degree) isotherm, represents the altitude in which the temperature is at 0 °C (the freezing point of water) in a free atmosphere (i.e. allowing reflection of the sun by snow, icing conditions, etc.).

  5. Atmospheric icing - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_icing

    Water does not always freeze at 0 °C (32 °F). Water that persists in liquid state below this temperature is said to be supercooled, and supercooled water droplets cause icing on aircraft. Below −20 °C (−4 °F), icing is rare because clouds at these temperatures usually consist of ice particles rather than supercooled water droplets.

  6. Melting point - Wikipedia

    en.wikipedia.org/wiki/Melting_point

    The melting point of ice at 1 atmosphere of pressure is very close [3] to 0 °C (32 °F; 273 K); this is also known as the ice point. In the presence of nucleating substances, the freezing point of water is not always the same as the melting point.

  7. Freezing - Wikipedia

    en.wikipedia.org/wiki/Freezing

    Most liquids freeze by crystallization, formation of crystalline solid from the uniform liquid. This is a first-order thermodynamic phase transition, which means that as long as solid and liquid coexist, the temperature of the whole system remains very nearly equal to the melting point due to the slow removal of heat when in contact with air, which is a poor heat conductor.

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  9. Absolute zero - Wikipedia

    en.wikipedia.org/wiki/Absolute_zero

    The theoretical temperature is determined by extrapolating the ideal gas law; by international agreement, absolute zero is taken as 0 kelvin (International System of Units), which is −273.15 degrees on the Celsius scale, [1] [2] and equals −459.67 degrees on the Fahrenheit scale (United States customary units or imperial units). [3]