Question

In a substance, particles vibrate so fast that their fixed position break down and then they move freely. It represents:

• A. a general rule for predicting solubility
• B. It represents relationship between volume and temperature at constant pressure
• C. a state in which the liquid and gas phases are in equilibrium
• D. solid phase changing to the liquid phase
  
• E. a relationship between absolute temperature and the kinetic energy of particles

Answer 1

The correct option is D solid phase changing to the liquid phase

In a substance particles vibrate so fast that their fixed position break down and then they move freely. This illustrates that solid phase change to the liquid phase.
In the solid phase the particles have fixed position. In the liquid phase, the particles can move freely.