Changes of State Chp. 10.4

Let’s Make A Change

What’s the Difference? A Solid : A state of matter where the particles have an absolute shape and volume. The particles are packed together tight and vibrate at a constant rate. A Liquid : An amorphous form of matter that has a definite volume but not a definite shape. The particles tend to slide past each other. A Gas : A form of matter where the particles have no definite shape or volume. The particles move at an extremely rapid rate.

WORDS TO KNOW

A Phase is any part of a system that has a uniform composition and properties. Equilibrium is a dynamic condition in which two opposing changes occur at equal rates in a closed system.

Solid -----> Liquid The process of a solid changing to a liquid is known as Melting. Example: Ice to Water

Solid -----> Gas The process of a solid changing to a gas is known as Sublimation. Example: Dry ice to CO 2 gas

Liquid -----> Solid The process of a liquid changing to a solid is freezing. Example: the transformation of water to ice.

Liquid ----> Gas The process of a liquid changing to a gas is vaporization. Example: the transformation of liquid bromine to bromine vapor.

Gas -----> Liquid The process of a gas changing to a liquid is condensation. Example: Water Vapor to Water

Gas -----> Solid The process of a gas changing to a solid is deposition. Example: Water vapor to Ice

Rules of the Road Object of the Game: be the first team to solve the most scenarios/riddles Use the sticky notes given to you and write your answer on them. Once you have the answer stick the sticky note to the board where it best fits

Lab Time