Question

Give two examples where change of state from liquid to vapour takes place without the liquid reaching the boiling point​

Answer 1

Answer:

When surgical alcohol is rubbed on the palm it evaporates.

When perfume is applied it evaporates off the skin.

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Explanation:

Answer 2

Answer:

1. Boiling of water at high altitudes, since at high altitude pressure increases and thus original boiling point​ decreases. Therefore change of state occur without reaching original boiling point.

2. Spraying of Perfumes, the perfumes stored in can and bottles is liquid in the bottle but turns vapour when pressed out. This is due to nozzle effect and contact with atmosphere.