Chemistry 30 Flash Cards {2}

Pregunta	Respuesta
Thermochemistry	The study of energy changes in chemical reactions.
Thermal Energy	The total kinetic energy of a substance. Always goes from high to low.
Heat	The transfer of thermal energy.
Kinetic Energy	The energy of motion including vibrational, rotational, and translational energy. V: small vibrations in the bonds of atoms. R: motion around the centre of mass. T: movement from place to place.
Potential Energy	Stored energy. Chemical energy is a form of potential energy.
Enthalpy	The total energy within a system, including kinetic and potential energy. Enthalpy cannot be known, but it can be measured.
Thermodynamics	1st Law: Energy cannot be created or destroyed, but it can be translated or transformed. 2nd Law: Energy is always lost in the form of heat; no chemical reaction is 100% efficient.
System	Chemical entities interacting and reacting with each other.
Surroundings	What the chemical reaction is reacting in and around. Anything that is not the system. Aqueous solutions have water that are considered the surroundings.
Energy Changes	Heating/Cooling Phase Change Chemical Reaction Nuclear Reaction
Enthalpy Changes	Includes Molar Enthalpy, Enthalpy Changes, Enthalpy in a Balanced Equation, or a Potential Energy Diagram.
Specific Heat Capacity	The energy required to increace the temperature of one gram of a substance by one degree Celsius.

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	Creado por Natasha Gidluck hace más de 8 años