the study of the changes in energy that accompany chemical reactions and physical changes.
What is Thermochemistry
100
the amount of energy absorbed as heat by a system in a process carried out at constant pressure.
What is enthalpy change
100
Law which states that the energy change in an overall chemical reaction is equal to the sum of the energy changes in the individual reactions comprising it.
What is Hess's Law
100
measure of the disorder of a system
What is entropy
200
device used to measure the heat transfer between system and surroundings.
What is calorimeter
200
the enthalpy change that occurs during a chemical reaction
What is enthalpy of reaction
200
Free energy refers to the amount of internal energy of a thermodynamic system that is available to perform work.
What is free energy
300
unit of energy in the SI system
What is joule
300
a balanced stoichiometric chemical equation that includes the enthalpy change, ΔH. In variable form, a thermochemical equation would look like this:
A + B → C
ΔH = (±) #
What is thermochemical equation
300
amount of free energy released (negative DG) or absorbed (positive DG) in a reaction at constant temperature and pressure
What is free-energy change
400
measure of the intensity of heat, i.e. the hotness or coldness of a sample. or object.
What is temperature
400
the total amount of energy resulting from the formation of one mole of a substance at constant pressure.
What is molar enthalpy of formation
500
amount of heat required to raise the temperature of one gram of substance one degree Celsius.
What is specific heat
500
enthalpy change that occurs in a combustion reaction