ASSIGNMENT OF PHYSICAL CHEMISTRY
B.SC-1 YEAR SECTION-B
NUMERICALS1) 56g of nitrogen are confined to 5dm3 flask at
300K.Calculate the pressure using the ideal gas equation
and vanderwaal’s equation.
2) Calculate the pressure exerted by 7.0g of N2 occupying a
volume of 0.1 Lt at 27 degree using vanderwaal’s equation
a=1.39,b=.0391dm3mol-1.
3) Using vanderwaal’s equation calculate the pressure
exerted by 1 mol of CO2 when it occupies a volume of
0.05dm3 at 373K. a=359.2kPadm6mol2,
b=0.042767dm3mol-1, R=8.314 atm dm3 K-1 mol-1.
4) The critical pressure and critical temp of a gas are 50atm
and 27 deg resp.calculate the vanderwaal’s constants of
the gas.The value of constant R=.0821 Lt atm/deg/mol.
5) Calculate the constants a and b for a gas obeying the
vanderwaal’s equation of state if the Tc and Pc are 31
deg,72.8 atm resp,R=0.0821 Lt atm/deg/mol.
6) Calculate the pressure exerted by one mole of CO2 at 40
deg when confined to a volume of 0.107dm3 by making
use of law of corresponding states.The values of critical
P,T,Vare 73 atm,304K,0.0957dm3 resp.
7) Compare the reduced temperature of ethylene and H2 at
27 deg.Given that the critical temp of ethylene and H2 are
9.7 deg and -239.9 deg.
UNIT- 2 SOLID STATE
1. Define solids and their classification.
2. Give point of difference between crystalline and
amorphous solids.
3. Comparison of characterstics of crystalline and
amorphous solids.
4. Classification of crystalline solids.
5. Definitions of face of crystal,edge of
crystal,form,crystal habit,interfacial angle ,unit
cell,space lattice.
6. Definition of SCC,BCC,FCC,End centered unit cell.
7. Definition of bravious lattices,name and draw each.
8. Table of crystal systems,formula for no. of atoms in
FCC,BCC,SCC,End centered unit cell.