Chemistry of Energy | 1/28/26

Heat

the transfer of energy between objects that are different  temperatures

Heat transfer

the movement of energy from a warmer object to a cooler object.

Energy transfer

the overall movement of energy between systems

Exothermic reaction

 A reaction that releases energy into the surroundings, typically as heat or light

Endothermic reaction

A reaction that takes in energy from the surroundings

Temperature

A  measure of the average kinetic energy of the particles within a substance, indicating how hot or cold something is. 

Thermal energy

total amount of energy in an object/substance

Radiation

The transmission of energy in the form of waves through space or a material medium. 

Convection

The transfer of heat by the movement of fluids (liquids or gases), where warmer, less dense fluid rises and cooler, denser fluid sinks, creating a cycle. 

Conduction

The process occurs between materials in contact, moving heat from a hotter to a cooler region until thermal equilibrium is reached.

List the three types of heat transfer. Give an example of each type of heat transfer.

Radiation: Visible light the sun emits

Convection: Heat in a classroom

Conduction: A handle of  a cold metal spoon in a bowl of hot soup will warm up.