Physics · May / June 2022 · Paper 12 · Question 20

Steam at 110 °C condenses on a surface to form water droplets at 100 °C. What happens after the steam comes into contact with the surface?

1. AThe molecules slow down and absorb energy from the surroundings.
2. BThe molecules slow down and emit energy to the surroundings.
3. CThe molecules stay at the same speed and absorb energy from the surroundings.
4. DThe molecules stay at the same speed and emit energy to the surroundings.

As printed in the paper