the study of the transfers of energy as heat that accompany chemical reactions and physical changes.
What is thermochemistry?
100
The amount of energy required to raise the temperature of one gram of a substance by one Celsius degree (1 degree C) or one kelvin (1 K).
What is specific heat?
100
The enthalpy change that occurs during the complete combustion of one mole of a substance.
What is enthalpy of combustion?
200
The energy absorbed or released as heat in a chemical or physical change is measured in.
What is a calorimeter?
200
The amount of energy absorbed by a system as heat during a process at constant pressure.
What is enthalpy change?
200
The overall enthalpy change in a reaction is equal to the sum of enthalpy changes for the individual steps in the process.
What is Hess's law?
300
A measure of the average kinetic energy of the particles in a sample of matter.
What is temperature?
300
The quantity of energy transferred as heat during a chemical reaction.
What is enthalpy of reaction.
300
Can be defined in a simple qualitative way as a measure of the degree of randomness of the particles, such as molecules, in a system.
What is Entropy S?
400
The SI unit of heat as well as all other forms of energy.
What is a joule?
400
An equation that includes the quantity of energy released or absorbed as heat during the reaction as written.
What is thermochemical equation?
400
The combined enthalpy-entropy function.
What is free energy?
500
_______ can be thought of as the energy transferred between samples of matter because of a difference in their temperatures.
What is heat?
500
The enthalpy change that occurs when one mole of a compound is formed from its elements in their standard state at 25 degrees C and 1 atm.
What is molar enthalpy of formation?
500
A constant pressure and temperature, the ______ of a system is defined as the difference between the change in enthalpy, and the product of the Kelvin temperature and the entropy change.