Key Terms
What are the types of systems we have discussed in class?
Isolated System, Closed System, Open System, Homogeneous system and Inhomogeneous system
Thermal energy is what?
Connected to the motion of atoms, molecules and ions (transitional, rotation, vibration).
Extensive quantities can be converted to intensive quantities, if they re related to unit mass, volume are what equations?
Density: p=m/V
Molar volume: Vm= V/n
Molar internal energy: Um= U/n
What is the electric dipole moment?
U=Qd
What are the basic state functions for the Thermodynamic System?
Amt of substance: m and n
V
p
T
c
A) Warming, cooling
B) Phase change
C) Chemical reaction
What is the ideal gas equation?
PV=nRT
What is Mass Density equation?
P= m/v
What is a Meta-stable state?
The state is not of minimal energy, energy is necessary for crossing an energy barrier.
What is phase change?
Phase changes are isothermal and isobaric processes.
The energy (E) of a system consists of the kinetic energy (Ekin) and the potential energy (Epcot) of the system and its internal energy?
E=Ekin + Epcot + U
What is the electrons constant?
e= 2.71828
What are the important state functions of Thermodynamic System?
U- internal energy
H- enthalpy
S- entropy
A- Helmoholtz free energy
G- Gibbs free energy
Explain the difference in the Lewis structures we have discussed?
Draw on board.
What chemical reaction equations?
Constant pressure: Qp=n(integral)t2t1 Cmp(T)dT
Constant volume: Qv= n(integral)t2t1 CmvdT
What is the definition of Work?
SW= F(dr)
Explain polar bonds? What is electronegativity?
Electronegativity: (x (chi)): the ability of an atom to attract electrons to itself when part of a molecule is measured.
Explain what a nuclear model is?
An atom of atomic number (z) consists of a nucleus of charge +ze surrounded by z electrons each of a charge negative electrons. The electrons occupy the atomic orbitals.
List all the work equations?
Surface work: SW=ydA
Electric work: SW=(o/)dq
Relation between Cmp and Cmv equations?
Cmp = Cmv + R
Cmp-Cmv = R