change of state

• Terme utilisé en physique et en chimie pour désigner le passage d'une substance d'un état physique à un autre, par exemple la fusion, la solidification, l'ébullition ou la condensation.

A term used in physics and chemistry to describe the transformation of matter from one physical form to another, such as melting, freezing, boiling, or condensing.

1. Physical transformationB2formal

   The process by which a substance transitions from one physical state (solid, liquid, or gas) to another, typically due to changes in temperature or pressure.

   changement d'état

   • Melting ice is a classic example of a change of state from solid to liquid.
   • When water boils, it undergoes a change of state from liquid to gas.
   • Condensation on a cold glass shows a change of state from gas to liquid.

2. Fundamental shiftC1formal

   A significant and often complete transformation in the nature, condition, or status of something.

   changement d'état

   • The country experienced a change of state from a monarchy to a republic.
   • His recovery marked a change of state from critical to stable condition.
   • The company's bankruptcy was a drastic change of state for its employees.