Question

In which phase transition do molecules directly move from a state involving vibration of particles in a fixed position to a state involving random movement of high-speed particles?

Answer 1

In sublimation phase transition do molecules directly move from a state involving vibration of particles in a fixed position to a state involving random movement of high-speed particles

The reason is that in the process of sublimation the molecules change states from being a solid to directly to gases.

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