11.2 Flashcards
What is an isolated system?
A system in which neither energy nor matter can move out
What is calorimetry?
The technological process of measuring energy changes in an isolated system
What is an isolated system called?
Calorimeter
What is the energy gained by a chemical system equal to?
The energy lost by the calorimeter
What is the chemical formula for the Quantity of thermal energy transferred?
Q=mcΔt
What is specific heat capacity?
The quantity required to raise the temperature by a unit mass of a substance by one degree celsius
What does chemical potential energy include?
Energy stored within covalent and ionic bonds and intermolecular forces
What are types of chemical energy?
Moving electrons within atoms
Vibration of atoms
What is enthalpy?
The total kinetic and potential energy within a chemical system
What does enthalpy change communicate?
The difference between the enthalpy of the products and reactants
What does enthalpy of reaction refer to?
The energy change for the whole chemical system when reactants change to products
What is molar enthalpy of a reaction?
The enthalpy change per unit chemical amount of a specified chemical undergoing change
