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Key Terms 1
Key Terms 2
Key Terms 3
Key Terms 4
Key Terms 5
100
Thermochemistry
What is the branch of chemistry concerned with the quantities of heat evolved or absorbed during chemical reactions
100
Joule
What is a unit of energy.
100
Enthalpy Change
What is a thermodynamic quantity equivalent to the total heat content of a system.
100
Molar enthalpy of formation
What is the heat released or absorbed in a chemical reaction.
100
Entropy
What is a thermodynamic quantity representing the unavailability of a system's thermal energy.
200
Calorimeter
What is an apparatus for measuring the amount of heat involved in a chemical reaction.
200
Heat
What is the form of energy that flows between two samples of matter due to their difference in temperature.
200
Enthalpy of Reaction
What is the enthalpy change that occurs in a system when one mole of matter is transformed by a chemical reaction.
200
Enthalpy of Combustion
What is the enthalpy change when 1 mole of a compound is completely burnt in oxygen gas at 298K.
200
Free energy
What is a thermodynamic quantity equivalent to the capacity of a system to do work.
300
Temperature
What is the degree or intensity of heat present in a substance or object.
300
Specific Heat
What is the amount of heat energy required to raise the temperature of a body per unit of mass
300
Thermochemical Equation
What is a balanced stoichiometric chemical equation that includes the enthalpy change, delta H.
300
Hess's Law
What is regardless of the multiple steps of a reaction, the total enthalpy change is the sum of all changes.
300
Free-energy change
What is a thermodynamic quantity that is the difference between the enthalpy and the product of the absolute temperature and entropy of a system.