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Which outcome occurs when a cryogenic liquid boils?

A)Heat transfers via latent heat.
B)Viscosity spontaneously decreases dramatically.
C)Superfluidity effects completely vanish.
D)Vapor pressure decreases toward vacuum.

💡 Explanation

Boiling involves a phase transition, where added heat increases molecular kinetic energy. Heat transfers via latent heat of vaporization, because this provides the energy needed to overcome intermolecular attractive forces during the phase transition. Therefore, the liquid evaporates rather than staying liquid; viscosity is less directly affected.

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