Flashcards in Chapter 7 Deck (17):
Contains the process under study
The rest of the universe
First law of thermodynamics
Energy of the universe is constant (law of conservation)
Each chemical bond has what?
Stored chemical energy
Energy required to break the bond is less than than the energy released when the bonds are formed, net release of energy
Energy required to break bonds is larger than the energy released when the bonds are formed
Entropy is negative you must do what?
Apply some form of energy
2nd law of thermodynamics
Doubly tends toward increasing disorder and randomness
Measure of randomness of a chemical system (no such thing as negative entropy)
Positive entropy means?
Increase in disorder for the reaction
Exothermic and positive entropy =
Endothermic and negative entropy =
Represents the combined contribution of the enthalpy n entropy values for a chemical reaction
Free energy predicts what?
Spontaneity of a chemical reaction
Measurement of heat energy changes in a chemical reaction
Measures heat changes in calories