Above what temperature does the word temperature looses its meaning ?

Question

What would be the temperature of resultant if we mix 1kg of ice with 1kg of steam?
(Share your working also)

Answer 1

The temperature of a super-heated plasma.

Increased temperature would lose meaning in a plasma where all protons, neutrons, and electron fly apart and the measurements of collisions of individual atoms/molecules (the definition of temperature) lose their meaning.

Comments

The fusion energy of a star being a prime example.

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Actually it still has to get unimaginably hotter yet to completely break physics. And that temperature has a name to it. Lots of zeros in that temp.

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Actually it still has to get unimaginably hotter yet to completely break physics. And that temperature has a name to it. Lots of zeros in that temp.
Also the temperature at the core of the sun is still measurable and meaningful (approx 15 million degree centigrade). Temperature is just the translational kinetic energy that a matters constituents can have.

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Sounds like some kinda paranormal phenomena right out of Star Trek.

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It is 1.416 × 10^32 K and is called as the Plancks Temperature. This is the other end of the absolute zero case not some Start Trek mumbo jumbo.

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Interesting, as Spock would say.  :)

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At this temperature the frequency of radiation generated from this temperature will correspond to wavelengths of just a unit Planck Distance, the indivisible part of the fabric of the universe.

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Yes, and through the de Broglie Wave Equation these calculations are possible.

In 1923 French physicist Louis de Broglie suggested that all particles (not just photons) have both wave and particle properties. He calculated that every particle has a wavelength represented by λ equal to Planck’s constant (h) divided by the momentum (p) of the particle: λ = h/p.