When water at 100 °C turns to steam at 100 °C, the molecules' average kinetic energy:

  1. becomes zero
  2. stays the same, while their potential energy increases
  3. decreases
  4. increases
Answer

B) stays the same, while their potential energy increases

Constant temperature. SLO P-11-C-12 · Understanding

Physics MCQ · More Kinetic Theory and First Law of Thermodynamics MCQs · Practise