LT meaning in Chemistry ?

Answer:

What is Low Temperature mean?

In physics, cryogenics is the production and behaviour of materials at very low temperatures.

The 13th IIR International Congress of Refrigeration (held in Washington DC in 1971) endorsed a universal definition of “cryogenics” and “cryogenic” by accepting a threshold of 120 K (or –153 °C) to distinguish these terms from the conventional refrigeration. This is a logical dividing line, since the normal boiling points of the so-called permanent gases (such as helium, hydrogen, neon, nitrogen, oxygen, and normal air) lie below −120 °C while the Freon refrigerants, hydrocarbons, and other common refrigerants have boiling points above −120 °C. The U.S. National Institute of Standards and Technology considers the field of cryogenics as that involving temperatures below −180 °C (93 K; −292 °F).

Discovery of superconducting materials with critical temperatures significantly above the boiling point of liquid nitrogen has provided new interest in reliable, low cost methods of producing high temperature cryogenic refrigeration. The term "high temperature cryogenic" describes temperatures ranging from above the boiling point of liquid nitrogen, −195.79 °C (77.36 K; −320.42 °F), up to −50 °C (223 K; −58 °F).

Cryogenicists use the Kelvin or Rankine temperature scale, both of which measure from absolute zero, rather than more usual scales such as Celsius which measures from the freezing point of water at sea level or Fahrenheit with its zero at an arbitrary temperature.

reference

Full Form	Category
Laplace Transform	Academic & Science
Lorentz Transformation	Academic & Science
Landsat Thematic	Academic & Science
Lecture Theatre	Academic & Science
Literary Translation	Academic & Science
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Lateral Tie	Academic & Science
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Low Tom	Community
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