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Chem Vocab
Chem Chapter 6 Vocab Terms
Term | Definition |
---|---|
Radiant Energy | solar energy, comes from the sun |
Thermal Energy | the energy associated with the random motion of atoms and molecules |
Chemical Energy | stored within the structural units of chemical substances |
Potential Energy | energy available by virtue of an objects position |
Thermochemistry | is the study of heat change in chemical reactions |
Heat | transfer of thermal energy between two bodies that are at different temperatures |
System | specific part of the universe that is of interest to us |
Surroundings | are the rest of the universe outside the system |
Endothermic | heat has to be supplied to the system |
Exothermic | any process that gives off heat, transfers thermal energy to its surroundings |
Enthalpy | H=U + PV (internal energy + pressure(volume)) |
Specific Heat | amount of heat required to raise the temperature of one gram of the substance by one degree Celcius |
Heat Capacity | the amount of heat required to raise the temperature of a given quantity of the substance by one degree Celsius |