FIRST SEMESTER
CHEMISTRY PAPERS
1 UNIVERSITY OF THE PUNJAB
First Semester 2014 Roll No. ................
PAPER:Chemistry-I(Physical Chemistry) TIME ALLOWED:2 hrs. & 30 mins. Course Code:CHEM-101 / CHM-11304 MAX. MARKS:50
----------------------------------------------------------------------------------------------------------------------------- Attempt this Paper on Separate Answer Sheet provided.
Part II (Subjective)
Question No 2: Write short answer of the following questions (2X10=20)
I. What is meant by "sedimentation"?
II. What is parachor ?
III. What is meant by magnetic susceptibility ?
IV. Describe lowering of vapour pressure.
V. What is catalysis ?
VI. What is physical adsorption ?
VII. What is meant by gels ?
VIII. Explain the term "micelles".
IX. Describe "isotonic solution".
X. What is "Tyndal Cone Effect".
(Long Questions)
Q.No 3 What is meant by the order of reaction? Derive the kinetic expression for the second
order reaction in which the reactants are: (5+5)
(a) at same concentration (b) at different concentration
Q.No 4 What is meant by space lattice of a crystal? Derive Bragg's equation for the diffraction
of X-Rays by crystal lattice. (10)
Q.No 5 a) Derive Clausius-Clapeyron Equation. (6)
Q.No 5 b) Describe "Second Law of Thermodynamics". (4)
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