Chemistry Heating/Cooling Curve

Condensation

an exothermic process in which a vapor or a gas changes into a liquid phase; the potential energy of the substance decreases during this constant temperature process; the reverse of the vaporization process

Deposition

1. the process in which a gas changes directly into a solid; the reverse of sublimation

Freezing

The constant temperature process in which particles in the liquid phase lose energy and change into the solid phase a.k.a solidification; the reverse of the melting point

Fusion

The constant temperature process in which particles in the solid phase gain enough energy to break away into the liquid phase a.k.a melting, the reverse of the freezing process in nuclear

Gaseous phase

a phase of matter without definite shape or volume

Heat

energy transferred from one substance to another; measured in units of  calories or joules

Heat of fusion

 the amount of heat needed to convert a unit mass of a substance from a solid to a liquid at its melting point

Heat of vaporization

the amount of heat needed to convert a unit mass of a substance from a liquid to a vapor at its boiling point ]

Kinetic molecular theory

 a theory used to explain the behavior of gasses in terms of the motion of other particles

Liquid phase

a phase of matter having definite VOLUME but NO definite shape (takes the shape of its container)

Solid phase

a phase of matter having a definite SHAPE and VOLUME 

sublimation

 the process in which a solid changes DIRECTLY into a gas; the reverse of deposition

temperature

 the measure of the average kinetic energy of a substance's particles

vaporization

the constant temperature process in which particles in the liquid phase gain enough energy to break away into the gaseous phase; a.k.a BOILING, the reverse of the condensation process

0 degrees C

melting point of water

100

boiling point for water

Iodine & Carbon Dioxide

… & … do not have liquid phases which is sublimation

change happening on the inside

ENDOthermic

change happening on the outside

EXOthermic