Gen Chem 134 Test Questions with Correct
solutions
kinetic molecular theory of gas
series of assumptions that aren't 100 percent true
postulates
taken as a statement of fact
List postulates
1.gas more in straight line fashion
2. collisions are elastic
3.molecules have no intramolecular attractive forces
4.volume of molecules or atom is negligible
5. kinetic energy is related to absolute temp
6. pressure is related to force of molecules on the walls of the container
Vmp (most propable)
square root 2xRxT/Molecular weight
Vave (average)
square root 8xRxT/pie x molecular weight
Vrms (root mean square)
square root 3xRxT/molecular weight
rank speed
, Vrms > Vave > Vmp
Van der Waals
(P+an^2/V^2)(V-nb)=nRT
Heat equation
q=Cs x m x delta T
Linear Clausius
InP= -deltaHvap/R (1/T) + I
Two point formula
InP2/P1= delta Hvap (1/T1 - 1/T2)
Heat vaporization
heat needed to vaporize 1 mol of substance
vapor pressure
pressure of liquid gone into gas phase
boiling point
temp which vaporization pressure is equal to applied pressure
heat vaporization
heat need to vaporize per 1 mol
Heat of fusion
solutions
kinetic molecular theory of gas
series of assumptions that aren't 100 percent true
postulates
taken as a statement of fact
List postulates
1.gas more in straight line fashion
2. collisions are elastic
3.molecules have no intramolecular attractive forces
4.volume of molecules or atom is negligible
5. kinetic energy is related to absolute temp
6. pressure is related to force of molecules on the walls of the container
Vmp (most propable)
square root 2xRxT/Molecular weight
Vave (average)
square root 8xRxT/pie x molecular weight
Vrms (root mean square)
square root 3xRxT/molecular weight
rank speed
, Vrms > Vave > Vmp
Van der Waals
(P+an^2/V^2)(V-nb)=nRT
Heat equation
q=Cs x m x delta T
Linear Clausius
InP= -deltaHvap/R (1/T) + I
Two point formula
InP2/P1= delta Hvap (1/T1 - 1/T2)
Heat vaporization
heat needed to vaporize 1 mol of substance
vapor pressure
pressure of liquid gone into gas phase
boiling point
temp which vaporization pressure is equal to applied pressure
heat vaporization
heat need to vaporize per 1 mol
Heat of fusion
