A liquid at room temperature is placed on a metal surface that is also at room temperature. A student then blows lightly over the liquid and its temperature falls. What makes the liquid cooler?
- ABubbles of water vapour form in the liquid and go into the air.
- BThe moving air reduces the kinetic energy of all the particles in the liquid.
- CThermal energy flows from the liquid into the metal.
- DThe more energetic particles in the liquid escape into the air.