Chapter 16

Thermochemistry
is the study of the trasnfers of energy as heat that accompany chemical reactions and physical changes
Calorimeter
the energy absorbed or released as heat in a chemical or physical change
Temperature
is a measure of the average kinetic energy of the particles in a sample of matter
Joule
is the SI unit of heat as well as all other forms of energy
Heat
can be thought of as the energy trasferred between samples of matter because of a difference in their temperatures
Specific Heat
is the aount of energy required to raise the temperature of one gram of a substance by one Celcius degree or one Kelvin
Enthalpy Change
is the amount of energy absorbed by a system as heat during a process at constant pressure
Enthalpy of Reaction
is the quantity of energy transferred as heat during a chemical reaction
Thermochemcial Equation
an equation that includes that quantity of energy released or absorbed as heat during the reaction as written
Molar Enthalpy of Formation
is the enthalpy change that occurs when one mole of a compound is formed from its elements in their standard state
Enthalpy of Combustion
occurs during the complete combustion of one mole of a substance
Hess’s Law
the overall enthalpy change in a reaction is euqal to the sum of the enthalpy changes.
Entropy
a measure of the degree of the randomness of the particles, such as moleucles, in a system
Free Energy
The combined enthalpy-entropy function
Free Energy Change
the difference between the change in Enthalpy, and the product of the Kelvin temperature and the entropy change, T/S
Tagged In :

Get help with your homework


image
Haven't found the Essay You Want? Get your custom essay sample For Only $13.90/page

Sarah from studyhippoHi there, would you like to get such a paper? How about receiving a customized one?

Check it out