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What is the name of the temperature at which Helium I becomes Helium II?

Answer:

Lambda Point

The Lambda point is the temperature at which normal fluid helium (helium I) makes the transition to superfluid helium II (approximately 2. 17 K at 1 atmosphere). The lowest pressure at which He-I and He-II can coexist is the vapor−He-I−He-II triple point at 2. 1768 K (−270.

Chemistry Added November 23rd, 2020 by TriviaBotTriviaBot

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