PH-2160
Melting, boiling and evaporation
Physics · Secondary 4 · Hard · Melting, boiling and evaporation
A sealed can of soft drink is taken from a refrigerator and left on a table. After a few minutes, water droplets appear on the outside of the can. Which statement best explains this observation?
- Water vapour in the air condenses on the cold can, releasing heat as it becomes liquid.
- Liquid water from inside the can seeps through tiny holes to the outside surface.
- The metal can cools the surrounding air, causing it to freeze into ice droplets.
- Water in the air evaporates on the can, taking in heat and forming droplets.
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