When distilling water from a solution of dissolved sugar, the process primarily involves the transition of water from a liquid state to a gas state and then back to a liquid state.
Here’s the sequence:
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Liquid to Gas: When the solution is heated, the water (liquid) evaporates and turns into water vapor (gas). This occurs because the boiling point of water is reached, allowing the water molecules to escape into the gas phase.
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Gas to Liquid: The water vapor is then typically cooled, which causes it to condense back into liquid water (condensation) in the distillation apparatus.
Therefore, the correct answer to your question is that the water goes through the phase change from a liquid to a gas and then back to a liquid during the distillation process. The dissolved sugar, on the other hand, remains in the liquid phase as it does not evaporate with the water.