Download PTU B.Sc (Non-Medical) 2020 March 2nd Sem 76300 Physical Chemistry I Question Paper

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Roll No. EEEEEEEE [ ] Total No. of Pages : 02

Total No. of Questions : 09

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B.Sc. (Non Medical) (Sem.-2)

PHYSICAL CHEMISTRY-I

Subject Code : BSNM-202-18

M.Code : 76300

Time : 3 Hrs. Max. Marks : 50

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying ONE 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

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1) Answer briefly :

1. What is ideal gas equation?
2. What is surface tension?
3. What is compressibility factor in ideal gas?
4. What are emulsions?

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5. What is gold number?
6. Explain the vapour pressure.
7. What is the osmosis?
8. Explain the osmotic law.
9. Explain the water in oil emulsions.

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10. What is effect of the temperature on viscosity?

SECTION-B

2. Explain the kinetic gas molecular theory of gas.
3. Explain the cause of deviation from ideal gas behaviour.
4. Explain the general applications of colloids.

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5. Derive the Raoult’s law.
6. Derive the expression of elevation in boiling point.

SECTION-C

7. Derive the expression for relation between molecular weight in depression in freezing point.
8. Derive the relation between critical constants and van der waals constant.

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9. Explain the kinetics and optical properties of sols:

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.