Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) B.Sc. in Biotechnology 2020 March Previous Question Papers
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc.(BT) (2014 to 2017) (Sem.?2)
PHYSICAL CHEMISTRY
Subject Code : BSBT-106
M.Code : 47012
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
1. Write briefly :
a) Define Zeroth law of thermodynamics. Give its important application.
b) What is thermodynamic basis of Hess law?
c) What is the basis of thermodynamic scale of temperature? Why is it more basic than
that based on ideal gas?
d) What is meant by triple point of water? Why is it different from normal melting point
of ice?
e) What is the difference between eutectic point and cryohydric point?
f) Why all the four phases cannot exist together in sulphur system?
g) How can you justify that osmotic pressure is a colligative property?
h) Which colligative property is used for finding the molecular masses of polymers and
why?
i) Briefly explain the effect of solvent on the rate of reaction.
j) Derive the expression for decay constant of a radioactive substance.
FirstRanker.com - FirstRanker's Choice
1 | M-47012 (S2)-2012
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc.(BT) (2014 to 2017) (Sem.?2)
PHYSICAL CHEMISTRY
Subject Code : BSBT-106
M.Code : 47012
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
1. Write briefly :
a) Define Zeroth law of thermodynamics. Give its important application.
b) What is thermodynamic basis of Hess law?
c) What is the basis of thermodynamic scale of temperature? Why is it more basic than
that based on ideal gas?
d) What is meant by triple point of water? Why is it different from normal melting point
of ice?
e) What is the difference between eutectic point and cryohydric point?
f) Why all the four phases cannot exist together in sulphur system?
g) How can you justify that osmotic pressure is a colligative property?
h) Which colligative property is used for finding the molecular masses of polymers and
why?
i) Briefly explain the effect of solvent on the rate of reaction.
j) Derive the expression for decay constant of a radioactive substance.
2 | M-47012 (S2)-2012
SECTION-B
2. Derive expressions for ?H and ?E for adiabatic reversible expansion of a real gas.
3. What is Carnot cycle? How does it lead to the definition of entropy?
4. Draw and explain a phase diagram for one component system comprising more than one
solid phase.
5. Write a detailed note on pseudo-order reactions.
6. Derive thermodynamically the expression for relative lowering in vapour pressure.
SECTION-C
7. a) Discuss in details the phase diagram for KI-H
2
O system.
b) Calculate the activation energy of a reaction whose reaction rate at 27?C gets doubled
for 10?C rise in temperature.
8. a) After 24 hours, only 0.125 g out of the initial quantity of 1 g of a radioactive isotope
remains behind. What is its half-life period?
b) Write a detailed note on acid base catalysis.
9. a) A solution contains 6 g of a solute dissolved in 250 ml of water gave an osmotic
pressure of 4.5 atm at 27?C. Calculate the boiling point of the solution. The molal
elevation constant of water is 0.52 K Kg/mol.
b) Write a detailed note on Nernst heat theorem.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
FirstRanker.com - FirstRanker's Choice
This post was last modified on 02 April 2020