Which outcome increases when superfluid Helium-4 transitions phases?

A)Thermal conductivity suddenly increases vastly✓

B)Viscosity begins to significantly markedly rise

C)Surface tension immediately decreases sharply

D)Compressibility drops nearing incompressibility

💡 Explanation

As superfluid Helium-4 enters its phase, energy transfer occurs via **second sound**, because the phonon mean free path increases greatly; therefore heat flow changes vastly from diffusion to wave propagation, rather than just convection.

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Which outcome increases when superfluid Helium-4 transitions phases?

💡 Explanation

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