Question | Answer |
Alpha Partical | Subtracts |
Beta Partical | Adds |
Second Law of Thermodynamics | In spontaneous process there is an increase in the entropy of the universe |
Third Law of Thermodynamics | The entropy of a perfect crystal at 0 |
Electrolysis | Forcing a current through a cell to drive a non spontaneous reaction to occur |
Irreversible Process | System must take another path to return to its natural state |
Gibbs Free Energy | Change G= Change H- (T) Change S
and
Change G= Change G final- Change G Initial |
Electrochemistry | Study of relationships between electricity and chemical reactions |
Oxidation | Loss of electrons |
Reduction | Gain of electrons |
Voltaic Cell | Use of electricity from spontaneous redox reaction to generate electricity by transfer of electron through external pathway |
Anode | Oxidation |
Cathode | Reduction |
Ecell | Ecell= Cathode- Anode |
Salt Bridge | Allows for passage on ions to maintain electrical neutrality |
Cell Potential | Driving force for electron flow also EMF or Electromotive Force |
Battery | Voltaic cell or series of voltaic cells |
Fuel Cells | Voltaic cell with constant potential because reactants are constantly added |
Corrosion | Natural occurring oxidation of metals |
Nucleons | Subatomic particles |
Atomic Number | Protons |
Mass Numbers | Sum of protons and neutrons in a nuclide |
Isotope | Atom with a particular number of neutrons in a nucleus |
Radioactivity | Decay of an unstable nucleus by emission of particles and/or electromagnetic radiation |
Positron | Has electron in the equation |
Spontaneous Process | Occurs without outside intervention |
First Law of Thermodynamics | Law of Conservation of Energy |
Enthalpy | Change in H |
Exothermic | H is more than 0 |
Endothermic | H is less than 0 |
Reversible Process | Change to system is made in such a way that the system can be restored to original state by exactly reversing the change |
Entropy | Change in S |
Fission | Splitting of heavy nuclei |
Fusion | Combining of lighter nuclei into heavier nuclei |