Change of state (Section 2) !!! Flashcards
A Change of state happens when
matter changes from one physical form to another
A Change of state is always
a physical change
The identity of the substances does not
change in a physical change
________ must be added or removed in order for a substance to change _______ state.
Energy, physical
The movement of particles depends on the __________
state of the substance (solid, liquid, gas)
To change liquid water into ice___________
Energy must be removed
Melting is the change of state ______________
from solid to liquid
The melting point of the substance is the temperature _______________
at which it changes from a solid to liquid.
As the temp of a solid become greater ______________
It’s particles move faster
The melting point of the substance is the __________________
Temperature at which it changes from a solid to a liquid.
Melting point depends on the _______________
Composition, or makeup, of the substance.
For a solid to melt ___________
Particles must absorb energy.
The freezing point is the temp at which a _______________
substance changes from liquid to a solid state.
Evaporation is the ___________________
Change of state from the liquid state to the gas state
